Exhibit 7(b)

                                  $40,000,000

                          MUNIYIELD PENNSYLVANIA FUND
                        (a Massachusetts business trust)

                AUCTION MARKET PREFERRED SHARES(R) ["AMPS"(R)]

                                   800 Shares

                    Liquidation Preference $50,000 Per Share

                               PURCHASE AGREEMENT
                               ------------------

                                                               November 20, 1992

MERRILL LYNCH & CO.
Merrill Lynch, Pierce, Fenner & Smith
         Incorporated
Merrill Lynch World Headquarters
World Financial Center
North Tower
New York, New York 10281-1201

Dear Sirs:

     MuniYield Pennsylvania Fund, a Massachusetts business trust (the "Trust"),
and Fund Asset Management, Inc., a Delaware corporation (the "Adviser"), each
confirms its agreement with Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner &
Smith Incorporated (the "Underwriter") with respect to the sale by the Fund and
the purchase by the Underwriter of 800 shares of auction market preferred shares
(collectively, the "Shares"), par value $.10 per share, liquidation preference
$50,000 per share plus an amount equal to accumulated but unpaid dividends
(whether or not earned or declared).

     Prior to the purchase and public offering of the Shares by the Underwriter,
the Fund and the Underwriter shall enter into an agreement substantially in the
form of Exhibit A hereto (the "Pricing Agreement").  The Pricing Agreement may
take the form of an exchange of any standard form of written telecommunication
between the Fund and the Underwriter and shall specify such applicable
information as is indicated in Exhibit A hereto.  The offering of the Shares
will be governed by this Agreement, as supplemented by the Pricing Agreement.
From and after the date of the execution and delivery of the Pricing Agreement,
this Agreement shall be deemed to incorporate the Pricing Agreement.


______________________

(R)  Registered trademark of Merrill Lynch & Co., Inc.




     The Fund has filed with the Securities and Exchange Commission (the
"Commission") a notification on Form N-8A of registration of the Fund as an
investment company under the Investment Company Act of 1940, as amended (the
"1940 Act"), and a registration statement on Form N-2 (No. 33-53616) and a
related preliminary prospectus for the registration of the Shares under the
Securities Act of 1933, as amended (the "1933 Act"), and the 1940 Act, and the
rules and regulations of the Commission under the 1933 Act and the 1940 Act (the
"Rules and Regulations") and has filed such amendments to such registration
statement on Form N-2, if any, and such amended preliminary prospectuses as may
have been required to the date hereof.  The Fund will prepare and file such
additional amendments thereto and such amended prospectuses as may hereafter be
required.  Such registration statement (as amended at the time it becomes
effective, if applicable) and the prospectus constituting a part thereof
(including in each case the information, if any, deemed to be part thereof
pursuant to Rule 430A(b) of the Rules and Regulations), as from time to time
amended or supplemented pursuant to the 1933 Act, are hereinafter referred to as
the "Registration Statement" and the "Prospectus," respectively, except that if
any revised prospectus shall be provided to the Underwriter by the Fund for use
in connection with the offering of the shares which differs from the Prospectus
on file at the Commission at the time the Registration Statement becomes
effective (whether such revised prospectus is required to be filed by the Fund
pursuant to Rule 497(b) or Rule 497(h) of the Rules and Regulations) the term
"Prospectus" shall refer to such revised prospectus from and after the time it
is first provided to the Underwriter for such use.

     The Fund understands that the Underwriter proposes to make a public
offering of the Shares as soon as the Underwriter deems advisable after the
Registration Statement becomes effective and the Pricing Agreement has been
executed and delivered.

  SECTION 1.  Representations and Warranties.  (a)  The Fund and the Adviser
              ------------------------------
each severally represents and warrants to the Underwriter as of the date hereof
and as of the date of the Pricing Agreement (such later date being hereinafter
referred to as the "Representation Date") as follows:

        (i)  At the time the Registration Statement becomes effective and at the
     Representation Date, the Registration Statement will comply in all material
     respects with the requirements of the 1933 Act, the 1940 Act and the Rules
     and Regulations and will not contain an untrue statement of a material fact
     or omit to state a material fact required to be stated therein or necessary
     to make the statements therein not misleading.  At the time the
     Registration Statement becomes effective, at the Representation Date and at
     Closing Time as defined in Section 2, the Prospectus (unless the term
     "Prospectus" refers to a prospectus which has been provided to the
     Underwriter by the Fund for use in connection with the offering of the
     Shares which differs from the Prospectus on file with the Commission at the
     time the Registration Statement becomes effective, in which case at the
     time it is first provided to the Underwriter for such use) will not contain
     an untrue statement of a material fact or omit to state a material fact
     necessary in order to make the statements therein, in the light of the
     circumstances under which they were made, not misleading; provided,
                                                               --------
     however, that the representations and warranties in this subsection shall
     -------
     not apply to statements in or omissions from the Registration Statement or

                                       2


     Prospectus made in reliance upon and in conformity with information
     furnished to the Fund in writing by the Underwriter expressly for use in
     the Registration Statement or Prospectus.

        (ii) The accountants who certified the statement of assets, liabilities
     and capital included in the Registration Statement are independent public
     accountants as required by the 1933 Act and the Rules and Regulations.

        (iii)  The financial statements included in the Registration Statement
     present fairly the financial position of the Fund as at the date indicated
     and the results of its operations for the period specified; such financial
     statements have been prepared in conformity with generally accepted
     accounting principles; and the information in the Prospectus under the
     headings "Description of Shares" and "Portfolio Composition" has been
     fairly presented.

        (iv) Since the respective dates as of which information is given in the
     Registration Statement and the Prospectus, except as otherwise stated
     therein, (A) there has been no material adverse change in the condition,
     financial or otherwise, of the Fund, or in the earnings, business affairs
     or business prospects of the Fund, whether or not arising in the ordinary
     course of business, (B) there have been no transactions entered into by the
     Fund which are material to the Fund other than those in the ordinary course
     of business and (C) except for regular monthly dividends on the outstanding
     shares of beneficial interest, par value $.10 per share ("Common Shares")
     of the Fund, there has been no dividend or distribution of any kind
     declared, paid or made by the Fund on any class of its shares of beneficial
     interest.

        (v)  The Fund has been duly organized and is validly existing as a
     voluntary association (commonly referred to as a business trust) in good
     standing under the laws of The Commonwealth of Massachusetts with power and
     authority to own, lease and operate its properties and conduct its business
     as described in the Registration Statement; the Fund is duly qualified to
     transact business and is in good standing in each jurisdiction in which
     such qualification is required; and the Fund has no subsidiaries.

        (vi) The Fund is registered with the Commission under the 1940 Act as a
     closed-end, non-diversified management investment company, and no order of
     suspension or revocation of such registration has been issued or
     proceedings therefor initiated or threatened by the Commission.

        (vii)  The authorized, issued and outstanding shares of beneficial
     interest of the Fund are as set forth in the Prospectus under the caption
     "Description of Shares"; the outstanding Common Shares have been duly
     authorized and validly issued and are fully paid and nonassessable; the
     Shares have been duly authorized for issuance and sale to the Underwriter
     pursuant to this Agreement and, when issued and delivered by the Fund
     pursuant to this Agreement against payment of the consideration set forth
     in the Pricing Agreement, will be validly issued and fully paid and
     nonassessable; the Common Shares and the Shares conform in all material
     respects to all statements relating thereto contained

                                       3


     in the Registration Statement; and the issuance of the Shares to be
     purchased by the Underwriter is not subject to preemptive rights.

        (viii)  The Fund is not in violation of its Declaration of Trust or by-
     laws, as amended (the "By-Laws") or in default in the performance or
     observance of any material obligation, agreement, covenant or condition
     contained in any contract, indenture, mortgage, loan agreement, note, lease
     or other instrument to which it is a party or by which it or its properties
     may be bound; and the execution and delivery of this Agreement, the Pricing
     Agreement and the Investment Advisory Agreement, the Custodian Agreement,
     the Auction Agent Agreement and the Depository Agreement referred to in the
     Registration Statement (the "Advisory Agreement," "Auction Agreement,"
     "Custodian Agreement" and "Depository Agreement," respectively), and the
     consummation of the transactions contemplated herein and therein, will not
     conflict with or constitute a breach of, or default under, or result in the
     creation or imposition of any lien, charge or encumbrance upon any property
     or assets of the Fund pursuant to any contract, indenture, mortgage, loan
     agreement, note, lease or other instrument to which the Fund is a party or
     by which it may be bound or to which any of the property or assets of the
     Fund is subject, nor will such action result in any violation of the
     provisions of the Declaration of Trust or By-Laws of the Fund or, to the
     best knowledge of the Fund and the Adviser, any law, administrative
     regulation or administrative or court decree; and no consent, approval,
     authorization or order of any court or governmental authority or agency is
     required for the consummation by the Fund of the transactions contemplated
     by this Agreement, the Pricing Agreement, the Advisory Agreement, the
     Custodian Agreement, the Auction Agreement and the Depository Agreement,
     except such as has been obtained under the 1940 Act or as may be required
     under the 1933 Act or state securities or Blue Sky laws in connection with
     the purchase and distribution of the Shares by the Underwriter.

        (ix) The Fund owns or possesses or has obtained all material
     governmental licenses, permits, consents, orders, approvals and other
     authorizations necessary to lease or own, as the case may be, and to
     operate its properties and to carry on its businesses as contemplated in
     the Prospectus, and the Fund has not received any notice of proceedings
     relating to the revocation or modification of any such licenses, permits,
     covenants, orders, approvals or authorizations.

        (x)  There is no action, suit or proceeding before or by any court or
     governmental agency or body, domestic or foreign, now pending or, to the
     knowledge of the Fund or the Adviser, threatened against or affecting the
     Fund which might result in any material adverse change in the condition,
     financial or otherwise, business affairs or business prospects of the Fund
     or might materially and adversely affect the properties or assets of the
     Fund; and there are no material contracts or documents of the Fund which
     are required to be filed as exhibits to the Registration Statement by the
     1933 Act, the 1940 Act or by the Rules and Regulations which have not been
     so filed.

                                       4


        (xi) The Fund owns or possesses, or can acquire on reasonable terms,
     adequate trademarks, service marks and trade names necessary to conduct the
     business now operated by it, and the Fund has not received any notice of
     infringement of or conflict with asserted rights of others with respect to
     any trademarks, service marks and trade names which, singly or in the
     aggregate, if the subject of an unfavorable decision, ruling or finding,
     would materially and adversely affect the conduct of the business
     operations, financial condition or income of the Fund.

        (xii)  The Fund intends to, and will, direct the investment of the
     proceeds of the offering described in the Registration Statement in such a
     manner as to comply with the requirements of Subchapter M of the Internal
     Revenue Code of 1986, as amended ("Subchapter M of the Code"), and intends
     to qualify as a regulated investment company under Subchapter M of the
     Code.

        (xiii)  This Agreement, the Pricing Agreement, the Advisory Agreement
     and the Custodian Agreement have each been duly authorized, executed and
     delivered by the Fund, and each complies with all applicable provisions of
     the 1940 Act.

        (xiv)  The Auction Agreement and the Depository Agreement have each been
     duly authorized for execution and delivery by the Fund and, when executed
     and delivered by the Fund, will constitute a valid and binding obligation
     of the Fund, enforceable in accordance with its terms, subject, as to
     enforcement, to bankruptcy, insolvency, reorganization or other laws
     relating to or affecting creditors' rights and to general equity
     principles.

  (b)  The Adviser represents and warrants to the Underwriter as of the date
     hereof and as of the Representation Date as follows:

        (i)  The Adviser has been duly incorporated under the laws of the State
     of Delaware with corporate power and authority to conduct its business as
     described in the Prospectus.

        (ii) The Adviser is duly registered as an investment adviser under the
     Investment Advisers Act of 1940, as amended (the "Advisers Act"), and is
     not prohibited by the Advisers Act or the 1940 Act or the rules and
     regulations under such acts from acting under the Advisory Agreement for
     the Fund as contemplated by the Prospectus.

        (iii)  This Agreement has been duly authorized, executed and delivered
     by the Adviser; the Advisory Agreement is in full force and effect and
     constitutes a valid and binding obligation of the Adviser, enforceable in
     accordance with its terms, subject, as to enforcement, to bankruptcy,
     insolvency, reorganization or other laws relating to or affecting
     creditors' rights and to general equity principles; and neither the
     execution and delivery of this Agreement nor the performance by the Adviser
     of its obligations hereunder or under the Advisory Agreement will conflict
     with, or result in a breach of, any of the terms and provisions of, or
     constitute, with or without the giving of notice or lapse of time or both,
     a default under, any agreement or instrument to which the Adviser

                                       5


     is a party or by which it is bound, or any law, order, rule or regulation
     applicable to it of any jurisdiction, court, federal or state regulatory
     body, administrative agency or other governmental body, stock exchange or
     securities association having jurisdiction over the Adviser or its
     respective properties or operations.

        (iv) The Adviser has the financial resources available to it necessary
     for the performance of its services and obligations as contemplated in the
     Prospectus.

  (c)  Any certificate signed by any officer of the Fund or the Adviser
     and delivered to the Underwriter shall be deemed a representation and
     warranty by the Fund or the Adviser, as the case may be, to the Underwriter
     as to the matters covered thereby.

  SECTION 2.  Sale and Delivery to the Underwriter; Closing.
              ---------------------------------------------

  (a)  On the basis of the representations and warranties herein contained and
     subject to the terms and conditions herein set forth, the Fund agrees to
     sell the Shares to the Underwriter, and the Underwriter agrees to purchase
     the Shares from the Fund, at the price per share set forth in the Pricing
     Agreement.

        (i)  If the Fund has elected not to rely upon rule 430A under the Rules
     and Regulations, the initial public offering price and the purchase price
     per share to be paid by the Underwriter for the Shares each has been
     determined and set forth in the Pricing Agreement, dated the date hereof,
     and an amendment to the Registration Statement and the Prospectus will be
     filed before the Registration Statement becomes effective.

        (ii) If the Fund has elected to rely upon rule 430A under the Rules and
     Regulations, the purchase price pet share to be paid by the Underwriter for
     the Shares shall be an amount equal to the initial public offering price,
     less an amount per share to be determined by agreement between the
     Underwriter and the Fund.  The initial public offering price per share
     shall be a fixed price to be determined by agreement between the
     Underwriter and the Fund.  The initial public offering price and the
     purchase price, when so determined, shall be set forth in the Pricing
     Agreement.  In the event that such prices have not been agreed upon and the
     Pricing Agreement has not been executed and delivered by all parties
     thereto by the close of business on the fourth business day following the
     date of this Agreement, this Agreement shall terminate forthwith, without
     liability of any party to any other party, except as provided in Section 5,
     unless otherwise agreed to by the Fund, the Adviser and the Underwriter.

  (b)  Payment of the purchase price for, and delivery of' certificates for, the
     Shares shall be made at the office of Brown & Wood, One World Trade Center,
     New York, New York 10048-0557, or at such other place as shall be agreed
     upon by the Underwriter and the Fund, at 10:00 A.M. on the fifth business
     day following the date the Registration Statement becomes effective (or, if
     the Fund has elected to rely upon rule 430A under the Rules and
     Regulations, the fifth business day after execution of the Pricing
     Agreement), or such other time not later than ten business days after such
     date as shall be agreed upon by the Underwriter and the Fund (such time and
     date of payment and delivery being herein called "Closing Time").  Payment
     shall be made

                                       6


     to the Fund by Federal fund check or checks or similar same-day funds and
     payable to the order of the Fund, against delivery to the Underwriter of
     the certificate for the Shares to be purchased by it. The Shares shall be
     represented by a certificate registered in the name of Cede & Co., as
     nominee for The Depository Trust Company. The certificate for the Shares
     will be made available for examination by the Underwriter not later than
     10:00 A.M. on the last business day prior to Closing Time.

  SECTION 3.  Covenants of the Fund.  The Fund covenants with the Underwriter as
              ---------------------
follows:

  (a)  The Fund will use its best efforts (i) to cause the Registration
     Statement to become effective under the 1933 Act and will advise the
     Underwriter promptly as to the time at which the Registration Statement and
     any amendments thereto (including any post-effective amendment) becomes so
     effective and (ii) if required, to cause the issuance of any orders
     exempting the Fund from any provisions of the 1940 Act and will advise the
     Underwriter promptly as to the time at which any such orders are granted.

  (b)  The Fund will notify the Underwriter immediately, and confirm the notice
     in writing, (i) of the effectiveness of the Registration Statement and any
     amendments thereto (including any post-effective amendment), (ii) of the
     receipt of any comments from the Commission, (iii) of any request by the
     Commission for any amendment to the Registration Statement or any amendment
     or supplement to the Prospectus or for additional information, (iv) of the
     issuance by the Commission of any stop order suspending the effectiveness
     of the Registration Statement or the initiation of any proceedings for that
     purpose and (v) of the issuance by the Commission of an order of suspension
     or revocation of the notification on Form N-8A of registration of the Fund
     as an investment company under the 1940 Act or initiation of any proceeding
     for that purpose. The Fund will make every reasonable effort to prevent the
     issuance of any stop order described in subsection (iv) hereunder or any
     order of suspension or revocation described in subsection (v) hereunder
     and, if any stop order or order of suspension or revocation is issued, to
     obtain the lifting thereof at the earliest possible moment.

  (c)  The Fund will give the Underwriter notice of its intention to file any
     amendment to the Registration Statement (including any post-effective
     amendment) or any amendment or supplement to the Prospectus (including any
     revised prospectus which the Fund proposes for use by the Underwriter in
     connection with the offering of the Shares which differs from the
     prospectus on file at the Commission at the time the Registration Statement
     becomes effective, whether such revised prospectus is required to be filed
     pursuant to Rule 497(b) or Rule 497(h) of the Rules and Regulations)
     whether pursuant to the 1940 Act, the 1933 Act, or otherwise, and will
     furnish the Underwriter with copies of any such amendment or supplement a
     reasonable amount of time prior to such proposed filing or use, as the case
     may be, and will not file any such amendment or supplement to which the
     Underwriter or counsel for the Underwriter shall reasonably object.

  (d)  The Fund will deliver to the Underwriter, as soon as practicable, two
     signed copies of the registration statement as originally filed and of each
     amendment thereto, in each case with two sets of the exhibits filed
     therewith, and will also deliver to the Underwriter a

                                       7


     conformed copy of the registration statement as originally filed and of
     each amendment thereto (but without exhibits to the registration statement
     or to any such amendment) for the Underwriter.

  (e)  The Fund will furnish to the Underwriter, from time to time during the
     period when the Prospectus is required to be delivered under the 1933 Act,
     such number of copies of the Prospectus (as amended or supplemented) as the
     Underwriter may reasonably request for the purposes contemplated by the
     1933 Act or the Rules and Regulations.

  (f)  If any event shall occur as a result of which it is necessary, in the
     opinion of counsel for the Underwriter, to amend or supplement the
     Prospectus in order to make the Prospectus not misleading in the light of
     the circumstances existing at the time it is delivered to a purchaser, the
     Fund will forthwith amend or supplement the Prospectus by preparing and
     furnishing to the Underwriter a reasonable number of copies of an amendment
     or amendments of, or a supplement or supplements to, the Prospectus (in
     form and substance satisfactory to counsel for the Underwriter), so that,
     as so amended or supplemented, the Prospectus will not contain an untrue
     statement of a material fact or omit to state a material fact necessary in
     order to make the statements therein, in the light of the circumstances
     existing at the time the Prospectus is delivered to a purchaser, not
     misleading.

  (g)  The Fund will endeavor, in cooperation with the Underwriter, to qualify
     the Shares for offering and sale under the applicable securities laws of
     such states and other jurisdictions of the United States as the Underwriter
     may designate and will maintain such qualifications in effect for a period
     of not less than one year after the date hereof. The Fund will file such
     statements and reports as may be required by the laws of each jurisdiction
     in which the Shares have been qualified as above provided.

  (h)  The Fund will make generally available to its security holders as soon as
     practicable, but not later than 60 days after the close of the period
     covered thereby, an earnings statement (in form complying with the
     provisions of Rule 158 of the Rules and Regulations) covering a twelve-
     month period beginning not later than the first day of the Fund's fiscal
     quarter next following the "effective" date (as defined in said Rule 158)
     of the Registration Statement.

  (i)  Between the date of this Agreement and the termination of any trading
     restrictions or Closing Time, whichever is later, the Fund will not,
     without your prior consent, offer or sell or enter into any agreement to
     sell any equity or equity related securities of the Fund other than the
     Shares and Common Shares issued in reinvestment of dividends or
     distributions.

  (j)  If, at the time that the Registration Statement becomes effective, any
     information shall have been omitted therefrom in reliance upon Rule 430A of
     the Rules and Regulations, then immediately following the execution of the
     Pricing Agreement, the Fund will prepare and file or transmit for filing
     with the Commission in accordance with such Rule 430A and Rule 497(h) of
     the Rules and Regulations, copies of an amended Prospectus or, if required
     by such Rule 430A, a post-effective amendment to the Registration Statement
     (including an amended Prospectus) containing all information so omitted.

                                       8


  (k)  The Fund will use its best efforts to maintain its qualification as a
     regulated investment company under Subchapter M of the Code.

  SECTION 4.  Covenants of the Underwriter.  The Underwriter covenants and
              ----------------------------
agrees with the Fund as follows:

  (a)  It will sell Shares only to a person who has agreed to execute and
     deliver, whose Broker-Dealer (as defined in the Prospectus) has agreed to
     execute and deliver or who has already executed and delivered a Master
     Purchaser's Letter (as defined in the Prospectus) in accordance with the
     terms of the Prospectus.

  (b)  No later than Closing Time, it will execute and deliver a Master
     Purchaser's Letter in accordance with the terms of the Prospectus.

  (c)  No later than the second business day succeeding Closing Time, it will
     provide the Fund and the Auction Agent (as defined in the Prospectus) with
     a list of the persons to whom it has sold Shares, the number of Shares sold
     to each such person and the number of Shares it is holding as of the date
     of such notice.

  SECTION 5.  Payment of Expenses.  The Fund will pay all expenses incident to
              -------------------
the performance of its obligations under this Agreement, including, but not
limited to, expenses relating to (i) the printing and filing of the Registration
Statement as originally filed and of each amendment thereto, (ii) the
preparation, issuance and delivery of the certificates for the Shares to the
Underwriter, (iii) the fees and disbursements of the Fund's counsel and
accountants, (iv) the qualification of the Shares under securities laws in
accordance with the provisions of Section 3(g) of this Agreement, including
filing fees and any fees or disbursements of counsel for the Underwriter in
connection therewith and in connection with the preparation of the Blue Sky
Survey, (v) the printing and delivery to the Underwriter of copies of the
Registration Statement as originally filed and of each amendment thereto, of the
preliminary prospectuses, and of the Prospectus and any amendments or
supplements thereto, (vi) the printing and delivery to the Underwriter of copies
of the Blue Sky Survey and (vii) the fees charged by rating agencies for the
rating of the Shares.

     If this Agreement is terminated by the Underwriter in accordance with the
provisions of Section 6 or Section 10(a)(i), the Fund or the Adviser shall
reimburse the Underwriter for all of their out-of-pocket expenses, including the
reasonable fees and disbursements of counsel for the Underwriter.  In the event
the transactions contemplated hereunder are not consummated, the Adviser agrees
to pay all of the costs and expenses set forth in the first paragraph of this
Section 5 which the Fund would have paid if such transactions had been
consummated.

  SECTION 6.  Conditions of Underwriter's Obligations.  The obligations of the
              ---------------------------------------
Underwriter hereunder are subject to the accuracy of the representations and
warranties of the Fund and the Adviser herein contained, to the performance by
the Fund and the Adviser of their respective obligations hereunder, and to the
following further conditions:

                                       9


  (a)  The Registration Statement shall have become effective not later than
     5:30 P.M., New York City time, on the date hereof or at such later time and
     date as may be approved by the Underwriter, and at Closing Time no stop
     order suspending the effectiveness of the Registration Statement shall have
     been issued under the 1933 Act or proceedings therefor initiated or
     threatened by the Commission. If the Fund has elected to rely upon Rule
     430A of the Rules and Regulations, the price of the Shares and any price-
     related information previously omitted from the effective Registration
     Statement pursuant to such Rule 430A shall have been transmitted to the
     Commission for filing pursuant to Rule 497(h) of the Rules and Regulations
     within the prescribed time period, and prior to Closing Time the Fund shall
     have provided evidence satisfactory to the Underwriter of such timely
     filing, or a post-effective amendment providing such information shall have
     been promptly filed and declared effective in accordance with the
     requirements of Rule 430A of the Rules and Regulations.

  (b)  At Closing Time, the Underwriter shall have received:

        (i)  The favorable opinion, dated as of Closing Time, of Brown & Wood
     LLP, counsel for the Fund and the Underwriter, to the effect that:

             (1)  The Fund has been duly organized and is validly existing as an
     unincorporated association commonly referred to as a business trust under
     the laws of The Commonwealth of Massachusetts.

             (2)  The Fund has power and authority to own, lease and operate its
     properties and conduct its business as described in the Prospectus.

             (3)  The Fund is duly qualified to transact business and is in good
     standing in each jurisdiction in which such qualification is required,
     except where the failure to so qualify would not have a material adverse
     effect on the condition, financial or otherwise, business affairs or
     business prospects of the Fund.

             (4)  The outstanding Common Shares have been duly authorized and
     validly issued and are fully paid and non-assessable.

             (5)  The Shares have been duly authorized for issuance and sale to
     the Underwriter pursuant to this Agreement and, when issued and delivered
     by the Fund pursuant to this Agreement against payment of the consideration
     set forth in the Pricing Agreement, will be validly issued and fully paid
     and non-assessable; the issuance of the Shares is not subject to preemptive
     or other similar rights; and the authorized shares of beneficial interest
     conform in all material respects to the description thereof in the
     Registration Statement.

             (6)  This Agreement and the Pricing Agreement each has been duly
     authorized, executed and delivered by the Fund, and each complies with all
     applicable provisions of the 1940 Act.

                                       10


             (7)  The Registration Statement is effective under the 1933 Act
     and, to the best of their knowledge and information, no stop order
     suspending the effectiveness of the Registration Statement has been issued
     under the 1933 Act, and no proceedings for that purpose have been
     instituted, are pending or are contemplated.

             (8)  At the time the Registration Statement became effective and at
     the Representation Date, the Registration Statement (other than the
     financial statements included therein, as to which no opinion need be
     rendered) complied as to form in all material respects with the
     requirements of the 1933 Act, the 1940 Act and the Rules and Regulations.

             (9)  To the best of their knowledge and information, there are no
     legal or governmental proceedings pending or threatened against the Fund
     which are required to be disclosed in the Registration Statement, other
     than those disclosed therein.

             (10) To the best of their knowledge and information, there are no
     contracts, indentures, mortgages, loan agreements, notes, leases or other
     instruments of the Fund required to be described or referred to in the
     Registration Statement or to be filed as exhibits thereto other than those
     described or referred to therein or filed as exhibits thereto, the
     descriptions thereof or references thereto are correct, and no default
     exists in the due performance or observance of any material obligation,
     agreement, covenant or condition contained in any contract, indenture, loan
     agreement, note or lease so described, referred to or filed.

             (11) No consent, approval, authorization or order of any court or
     governmental authority or agency is required in connection with the sale of
     the Shares to the Underwriter, except such as has been obtained under the
     1933 Act, the 1940 Act or the Rules and Regulations or such as may be
     required under state securities laws; and to the best of their knowledge
     and information, the execution and delivery of this Agreement, the Pricing
     Agreement, the Advisory Agreement, the Custodian Agreement, the Auction
     Agreement and the Depository Agreement and the consummation of the
     transactions contemplated herein and therein will not conflict with or
     constitute a breach of, or default under, or result in the creation or
     imposition of any lien, charge or encumbrance upon any property or assets
     of the Fund pursuant to any contract, indenture, mortgage, loan agreement,
     note, lease or other instrument to which the Fund is a party or by which it
     may be bound or to which any of the property or assets of the Fund is
     subject, nor will such action result in any violation of the provisions of
     the Declaration of Trust or By-Laws of the Fund, or any law, administrative
     regulation or administrative or court decree.

             (12) The Advisory Agreement and the Custodian Agreement have each
     been duly authorized, executed and delivered by the Fund, and each complies
     with all applicable provisions of the 1940 Act.

                                       11


             (13) The Fund is registered with the Commission under the 1940 Act
     as a closed-end, non-diversified management investment company, and all
     required action has been taken by the Fund under the 1933 Act, the 1940 Act
     and the Rules and Regulations to make the public offering and consummate
     the sale of the Shares pursuant to this Agreement; the provisions of the
     Declaration of Trust and By-Laws of the Fund comply as to form in all
     material respects with the requirements of the 1940 Act; and, to the best
     of their knowledge and information, no order of suspension or revocation of
     such registration under the 1940 Act, pursuant to Section 8(e) thereof, has
     been issued or proceedings therefor initiated or threatened by the
     Commission.

             (14) The information in the Prospectus under the caption "Taxes"
     (other than information related to Pennsylvania law, as to which no opinion
     need be rendered), to the extent that it constitutes matters of law or
     legal conclusions, has been reviewed by them and is correct in all material
     respects.

             (15) The Auction Agreement and the Depository Agreement each have
     been duly authorized, executed and delivered by the Fund, and each
     constitutes a valid and binding obligation of the Fund, enforceable in
     accordance with its terms, subject, as to enforcement, to bankruptcy,
     insolvency, reorganization or other laws relating to or affecting
     creditors' rights and to general equity principles.

        (ii) The favorable opinion, dated as of Closing Time, of Stradley,
     Ronon, Stevens & Young Special Counsel for the Fund, to the effect that:

             (1)  The information in the Prospectus under the caption "Taxes",
     to the extent that it constitutes matters of Pennsylvania law or legal
     conclusions or legal opinions involving matters of law, has been reviewed
     by them and is correct in all material respects.

             (2)  Nothing has come to their attention that would lead them to
     believe that the information in the Registration Statement under the
     caption "Investment Objective and Policies -- Special Considerations
     Relating to Pennsylvania Municipal Bonds" and in Appendix A entitled
     "Economic Conditions in Pennsylvania", at the time it became effective or
     at the Representation Date, contained an untrue statement of a material
     fact or omitted to state a material fact required to be stated therein or
     necessary to make the statements therein not misleading or that the
     information under such caption and in such appendix in the Prospectus, at
     the Representation Date (unless the term "Prospectus" refers to a
     prospectus which has been provided to the Underwriter by the Fund for use
     in connection with the offering of the Shares which differs from the
     Prospectus on file at the Commission at the time the Registration Statement
     becomes effective, in which case at the time they are first provided to the
     Underwriter for such use) or at Closing Time, included an untrue statement
     of a material fact or omitted to state a material fact necessary in order
     to make the statements therein, in the light of the circumstances under
     which they were made, not misleading.

                                       12


  (iii)  The favorable opinion, dated as of Closing Time, of Philip L. Kirstein,
Esq., General Counsel to the Adviser, in form and substance satisfactory to
counsel for the Underwriter, to the effect that:

        (1)  The Adviser has been duly organized as a corporation under the laws
     of the State of Delaware with corporate power and authority to conduct its
     business as described in the Registration Statement and the Prospectus.

        (2)  The Adviser is duly registered as an investment adviser under the
     Advisers Act and is not prohibited by the Advisers Act or the 1940 Act or
     the rules and regulations under such Acts from acting under the Advisory
     Agreement for the Fund as contemplated by the Prospectus.

        (3)  This Agreement has been duly authorized, executed and delivered by
     the Adviser; the Advisory Agreement is in fully force and effect and
     constitutes a valid and binding obligation of the Adviser, enforceable in
     accordance with its terms, subject, as to enforcement, to bankruptcy,
     insolvency, reorganization or other laws relating to or affecting
     creditors' rights and to general equity principles, and, to the best of his
     knowledge and information, neither the execution and delivery of this
     Agreement or the Advisory Agreement nor the performance by the Adviser of
     its obligations hereunder or thereunder will conflict with, or result in a
     breach of, any of the terms and provisions of, or constitute, with or
     without giving notice of lapse of time or both, a default under, any
     agreement or instrument to which it is a party or by which the Adviser is
     bound, or any law, order, rule or regulations applicable to the Adviser of
     any jurisdiction, court, Federal or state regulatory body, administrative
     agency or other governmental body, stock exchange or securities association
     having jurisdiction over the Adviser or its respective properties or
     operations.

        (4)  To the best of his knowledge and information, the description of
     the Adviser in the Registration Statement and the Prospectus does not
     contain any untrue statement of a material fact or omit to state any
     material fact required to be stated therein or necessary to make the
     statements therein not misleading.

  (iv) In giving their opinion required by subsection (b)(i) of this Section,
Brown & Wood shall additionally state that nothing has come to their attention
that would lead them to believe that the Registration Statement (excluding the
financial statements and financial schedules included therein, as to which such
counsel need express no belief), at the time it became effective or at the
Representation Date, contained an untrue statement of a material fact or omitted
to state a material fact required to be stated therein or necessary to make the
statements therein not misleading or that the Prospectus (except for the
financial statements and financial schedules included therein as to which such
counsel need express no belief), at the Representation Date (unless the term
"Prospectus" refers to a prospectus which has been provided to the Underwriter
by the Fund for use in connection with the offering of the Shares which differs
from the Prospectus on file at the Commission at the time the Registration
Statement becomes effective, in which case at


                                       13


the time it is first provided to the Underwriter for such use) or at Closing
Time, included an untrue statement of a material fact or omitted to state a
material fact necessary in order to make the statements therein, in the light of
the circumstances under which they were made, not misleading. In giving their
opinion, Brown & Wood may rely, as to all matters governed by the law of The
Commonwealth of Massachusetts, upon the opinion of Bingham, Dana & Gould, and
Brown & Wood may rely, as to matters of fact, upon certificates and written
statements of officers and employees of and accountants of the Fund and the
Adviser and of public officials.

        (c)  At Closing Time (i) the Registration Statement and the Prospectus
     shall contain all statements which are required to be stated therein in
     accordance with the 1933 Act, the 1940 Act and the Rules and Regulations
     and in all material respects shall conform to the requirements of the 1933
     Act, the 1940 Act and the Rules and Regulations, and the Prospectus shall
     not contain any untrue statement of a material fact or omit to state a
     material fact necessary to make the statements therein in the light of the
     circumstances under which they were made, not misleading and no action,
     suit or proceeding at law or in equity shall be pending or, to the
     knowledge of the Fund or the Adviser, threatened against the Fund or the
     Adviser which would be required to be set forth in the Prospectus other
     than as set forth therein, (ii) there shall not have been, since the
     respective dates as of which information is given in the Registration
     Statement and the Prospectus, any material adverse change in the condition,
     financial or otherwise, of the Fund or in its earnings, business affairs or
     business prospects, whether or not arising in the ordinary course of
     business, from that set forth in the Registration Statement and Prospectus,
     (iii) the Adviser shall have the financial resources available to it
     necessary for the performance of its services and obligations as
     contemplated in the Registration Statement and the Prospectus, (iv) no
     proceedings shall be pending or, to the knowledge of the Fund or the
     Adviser, threatened against the Fund or the Adviser before or by any
     Federal, state or other commission, board or administrative agency wherein
     an unfavorable decision, ruling or finding would materially and adversely
     affect the business, property, financial condition or income of either the
     Fund or the Adviser other than as set forth in the Registration Statement
     and the Prospectus and (v) Moody's Investors Service, Inc. ("Moody's") and
     Standard & Poor's Corporation ("S&P") shall have confirmed that the Shares
     have been rated "aaa" and AAA, respectively, by such agencies; and the
     Underwriter shall have received, at Closing Time, a certificate of the
     President or Treasurer of the Fund and of the President or a Vice President
     of the Adviser dated as of Closing Time, evidencing compliance with the
     appropriate provisions of this subsection (c), together with true and
     correct copies of letters from Moody's and S&P confirming their rating.

        (d)  At Closing Time, the Underwriter shall have received certificates,
     dated as of Closing Time, (i) of the President or Treasurer of the Fund to
     the effect that the representations and warranties of the Fund contained in
     Section 1(a) are true and correct with the same force and effect as though
     expressly made at and as of Closing Time and (ii) of the President or a
     Vice President of the Adviser to the effect that the representations and
     warranties of the Adviser contained in Sections 1(a) and (b) are true and
     correct with the same force and effect as though expressly made at and as
     of Closing Time.

                                       14


        (e)  At the time of execution of this Agreement, the Underwriter shall
     have received from Deloitte & Touche a letter, dated the date hereof, in
     form and substance satisfactory to the Underwriter, to the effect that:

             (i)  they are independent accountants with respect to the Fund
     within the meaning of the 1933 Act and the Rules and Regulations;

             (ii) in their opinion, the statement of assets, liabilities and
     capital examined by them and included in the Registration Statement
     complies as to form in all material respects with the applicable accounting
     requirements of the 1933 Act and 1940 Act and the Rules and Regulations;

             (iii)  they have performed specified procedures, not constituting
an audit, including a reading of the latest available interim financial
statements of the Fund, a reading of the minutes books of the Fund, inquiries of
officials of the Fund responsible for financial accounting matters and such
other inquiries and procedures as may be specified in such letter, and on the
basis of such inquiries and procedures nothing came to their attention that
caused them to believe that (A) the unaudited financial statements as of
November 2, 1992 included in the Registration Statement do not comply as to form
in all material respects with the applicable accounting requirements of the 1933
Act and the 1933 Act Regulations applicable to unaudited interim financial
statements included in registration statements or are not in conformity with
generally accepted accounting principles applied on a basis substantially
consistent with that of the audited financial statements included in the
Registration Statement, and (B) during the period from November 2, 1992 to a
specified date not more than five days prior to the date of this Agreement,
there was any change in the shares of beneficial interest or net assets of the
Fund or any increase in the long-term debt of the Fund, as compared with amounts
shown on the unaudited financial statements included in the Registration
Statement, except for changes which the Registration Statement discloses have
occurred or may occur; and

             (iv) in addition to the procedures referred to in clause (iii)
above, they have performed other specified procedures, not constituting an
audit, with respect to certain amounts, percentages, numerical data, financial
information and financial statements appearing in the Registration Statement,
which have previously been specified by you and which shall be specified in such
letter, and have compared certain of such items with, and have found such items
to be in agreement with, the accounting and financial records of the Fund.

        (f)  At Closing Time, the Underwriter shall have received from Deloitte
     & Touche a letter, dated as of Closing Time, to the effect that they
     reaffirm the statements made in the letter furnished pursuant to subsection
     (e) of this Section, except that the "specified date" referred to shall be
     a date not more than five days prior to closing Time.

        (g)  At Closing Time, counsel for the Underwriter shall have been
     furnished with such documents and opinions as they may reasonably require
     for the purpose of enabling them to pass upon the issuance and sale of the
     Shares as herein contemplated and to pass upon related

                                       15


     proceedings, or in order to evidence the accuracy of any of the
     representations or warranties, or the fulfillment of any of the conditions,
     herein contained; and all proceedings taken by the Fund and the Adviser in
     connection with the organization and registration of the Fund under the
     1940 Act and the issuance and sale of the Shares as herein contemplated
     shall be satisfactory in form and substance to the Underwriter and counsel
     for the Underwriter.

     If any condition specified in this Section shall not have been fulfilled
when and as required to be fulfilled, this Agreement may be terminated by the
Underwriter by notice to the Fund at any time at or prior to Closing Time, and
such termination shall be without liability of any party to any other party
except as provided in Section 5.

  SECTION 7.  Indemnification.  (a)  The Fund and the Adviser, jointly and
              ---------------
severally, agree to indemnify and hold harmless the Underwriter and each person,
if any, who controls the Underwriter within the meaning of Section 15 of the
1933 Act as follows:

        (i)  against any and all loss, liability, claim, damage and expense
     whatsoever, as incurred, arising out of any untrue statement or alleged
     untrue statement of a material fact contained in the Registration Statement
     (or any amendment thereto), including the information deemed to be part of
     the Registration Statement pursuant to Rule 430A of the Rules and
     Regulations, if applicable, or the omission or alleged omission therefrom
     of a material fact required to be stated therein or necessary to make the
     statements therein not misleading or arising out of any untrue statement or
     alleged untrue statement of a material fact contained in any preliminary
     prospectus or the Prospectus (or any amendment or supplement thereto) or
     the omission or alleged omission therefrom of a material fact necessary in
     order to make the statements therein, in the light of the circumstances
     under which they were made, not misleading;

        (ii) against any and all loss, liability, claim, damage and expense
     whatsoever, as incurred, to the extent of the aggregate amount paid in
     settlement of any litigation, or investigation or proceeding by any
     governmental agency or body, commenced or threatened, or of any claim
     whatsoever based upon any such untrue statement or omission, or any such
     alleged untrue statement or omission, if such settlement is effected with
     the written consent of the Fund; and

        (iii)  against any and all expenses whatsoever (including the fees and
     disbursements of counsel chosen by the Underwriter) reasonably incurred in
     investigating, preparing or defending against any litigation or
     investigation or proceeding by any governmental agency or body, commenced
     or threatened, or any claim whatsoever based upon any such untrue statement
     or omission, or any such alleged untrue statement or omission, to the
     extent that any such expense is not paid under (i) or (ii) above;

provided, however, that this indemnity agreement does not apply to any loss,
- --------  -------
liability, claim, damage or expense to the extent arising out of any untrue
statement or omission or alleged untrue statement or omission made in reliance
upon and in conformity with written information furnished to the Fund by the
Underwriter expressly for use in the Registration Statement (or any

                                       16


amendment thereto) or any preliminary prospectus or the Prospectus (or any
amendment or supplement thereto).

  (b)  The Underwriter agrees to indemnify and hold harmless the Fund and its
     trustees and the Adviser, and its directors, each of the Fund's officers
     who signed the Registration Statement, and each person, if any, who
     controls the Fund or the Adviser within the meaning of Section 15 of the
     1933 Act, against any and all loss, liability, claim, damage and expense
     described in the indemnity contained in subsection (a) of this Section, as
     incurred, but only with respect to untrue statements or omissions, or
     alleged untrue statements or omissions, made in the Registration Statement
     (or any amendment or supplement thereto) or any preliminary prospectus or
     the Prospectus (or any amendment or supplement thereto) in reliance upon
     and in conformity with written information furnished to the Fund by the
     Underwriter expressly for use in the Registration Statement (or any
     amendment thereto) or any preliminary prospectus or the Prospectus (or any
     amendment or supplement thereto).

  (c)  Each indemnified party shall give notice as promptly as reasonably
     practicable to each indemnifying party of any action commenced against it
     in respect of which indemnity may be sought hereunder, but failure to so
     notify an indemnifying party shall not relieve it from any liability which
     it may have otherwise than on account of this indemnity agreement.  An
     indemnifying party may participate at its own expense in the defense of
     such action.  In no event shall the indemnifying parties be liable for the
     fees and expenses of more than one counsel (in addition to any local
     counsel) separate from their own counsel for all indemnified parties in
     connection with any one action or separate but similar or related actions
     in the same jurisdiction arising out of the same general allegations or
     circumstances.

  SECTION 8.  Contribution.  In order to provide for just and equitable
              ------------
contribution in circumstances in which the indemnity agreement provided for in
Section 7 is for any reason held to be unenforceable by the indemnified parties
although applicable in accordance with its terms, the Fund and the Underwriter
shall contribute to the aggregate losses, liabilities, claims, damages and
expenses of the nature contemplated by said indemnity agreement as incurred by
the Fund and the Underwriter, as incurred, in such proportions that the
Underwriter is responsible for that portion represented by the percentage that
the underwriting compensation payable pursuant to Section 2 hereof bears to the
initial public offering price appearing on the cover page of the Prospectus, and
the Fund is responsible for the balance; provided, however, that no person
                                         --------  -------
guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of
the 1933 Act) shall be entitled to contribution from any person who was not
guilty of such fraudulent misrepresentation.  Notwithstanding the provisions of
this Section 8, the Underwriter shall not be required to contribute any amount
in excess of the amount by which the total price at which the Shares
underwritten by it and distributed to the public were offered to the public
exceeds the amount of any damages which such Underwriter has otherwise been
required to pay in respect of such losses, liabilities, claims, damages and
expenses.  For purposes of this Section, each person, if any, who controls the
Underwriter within the meaning of Section 15 of the 1933 Act shall have the same
tights to contribution as the Underwriter, and each trustee of the Fund, each
officer of the Fund who signed the Registration Statement, and each person, if
any, who controls the Fund

                                       17


within the meaning of Section 15 of the 1933 Act shall have the same rights to
contribution as the Fund.

  SECTION 9.  Representations, Warranties and Agreements to Survive Delivery.
              --------------------------------------------------------------
All representations, warranties and agreements contained in this Agreement and
the Pricing Agreement, or contained in certificates of officers of the Fund or
the Adviser submitted pursuant hereto, shall remain operative and in full force
and effect, regardless of any investigation made by or on behalf of the
Underwriter or a controlling person, or by or on behalf of the Fund or the
Adviser and shall survive delivery of the Shares to the Underwriter.

  SECTION 10.  Termination of Agreement.  (a)  The Underwriter, by notice to the
               ------------------------
Fund, may terminate this Agreement at any time or prior to Closing Time (i) if
there has been, since the date of this Agreement or since the respective dates
as of which information is given in the Registration Statement, any material
adverse change in the condition, financial or otherwise, or in the earnings,
business affairs or business prospects of the Fund or the Adviser, whether or
not arising in the ordinary course of business, or (ii) if there has occurred
any material adverse change in the financial markets in the United States or any
outbreak of hostilities or escalation thereof or other calamity or crisis the
effect of which is such as to make it, in the Underwriter's judgment,
impracticable to market the Shares or enforce contracts for the sale of the
shares, or (iii) if trading in the Common Shares has been suspended by the
Commission or if trading generally on either the American Stock Exchange or the
New York Stock Exchange has been suspended, or minimum or maximum prices for
trading have been fixed, or maximum ranges for prices for securities have been
required, by either of said exchanges or by order of the Commission or any other
governmental authority, or if a banking moratorium has been declared by Federal
or New York authorities.

  (b)  If this Agreement is terminated pursuant to this Section, such
     termination shall be without liability of any party to any other party
     except as provided in Section 5.

  SECTION 11.  Notices.  All notices and other communications hereunder shall be
               -------
in writing and shall be deemed to have been duly given if mailed or transmitted
by any standard form of written telecommunication.  Notices to the Underwriter
shall be directed to Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith
Incorporated at Merrill Lynch World Headquarters, North Tower, World Financial
Center, New York, New York 10281-1201, Attention: Richard N. Doyle, Vice
President; notices to the Fund or the Adviser shall be directed to each of them
at 800 Scudders Mill Road, Plainsboro, New Jersey, 08536, Attention: Arthur
Zeikel.

SECTION 12.  Parties.  This Agreement and the Pricing Agreement shall inure to
             -------
the benefit of and be binding upon the Underwriter, the Fund, the Adviser and
their respective successors.  Nothing expressed or mentioned in this Agreement
or the Pricing Agreement is intended or shall be construed to give any person,
firm or corporation, other than the parties hereto and their respective
successors and the controlling persons and officers and directors referred to in
Sections 7 and 8 and their heirs and legal representatives, any legal or
equitable right, remedy or claim under or in respect of this Agreement or any
provision herein contained.  This Agreement and the Pricing Agreement and all
conditions and provisions hereof are intended

                                       18


to be for the sole and exclusive benefit of the parties hereto and thereto and
their respective successors and said controlling persons and officers and
directors or trustees and their heirs and legal representatives, and for the
benefit of no other person, firm or corporation. No purchaser of Shares from the
Underwriter shall be deemed to be a successor by reason merely of such purchase.

  SECTION 13.  Liability of Shareholders, Trustees and Officers.  A copy of the
               ------------------------------------------------
Agreement and Declaration of Trust of the Fund is on file with the Secretary of
State of The Commonwealth of Massachusetts and notice is hereby given that this
Agreement has been executed on behalf of the Fund by an officer of the Fund as
an officer and not individually and the obligations of the Fund arising out of
this Agreement are not binding upon any of the trustees, officers or
shareholders of the Fund individually but are binding only upon the assets and
property of the Fund.

  SECTION 14.  Governing Law and Time.  This Agreement and the Pricing Agreement
               ----------------------
shall be governed by the laws of the State of New York applicable to agreements
made and to be performed in said State.  Specified times of day refer to New
York City time.

                                       19


     If the foregoing is in accordance with your understanding of our Agreement,
please sign and return to us a counterpart hereof, whereupon this instrument,
along with all counterparts, will become a binding agreement among the
Underwriter, the Fund and the Adviser in accordance with its terms.

                              Very truly yours,

                              MUNIYIELD PENNSYLVANIA FUND


                              By:
                                 ------------------------------------
                                        Authorized Officer


                              FUND ASSET MANAGEMENT, INC.


                              By:
                                 ------------------------------------
                                        Authorized Officer


CONFIRMED AND ACCEPTED,
     as of the date first above written:

MERRILL LYNCH & CO.
Merrill Lynch, Pierce, Fenner & Smith
         Incorporated

By:  Merrill Lynch, Pierce, Fenner & Smith
              Incorporated

By:
   -------------------------------------------
               Vice President
            Investment Banking

                                       20


                                                                       EXHIBIT A

                                  $40,000,000

                          MUNIYIELD PENNSYLVANIA FUND
                        (a Massachusetts business trust)

                 AUCTION MARKET PREFERRED SHARES(R) [AMPS(R)]

                                   800 Shares

                   Liquidation Preference, $50,000 Per Share

                               PRICING AGREEMENT
                               -----------------

                                                               November 23, 1992

MERRILL LYNCH & CO.
Merrill Lynch, Pierce, Fenner & Smith
         Incorporated
Merrill Lynch World Headquarters
World Financial Center
North Tower
New York, New York 10281-1201

Dear Sirs:

          Reference is made to the Purchase Agreement, dated November 20, 1992
(the "Purchase Agreement"), relating to the purchase by Merrill Lynch & Co.,
Merrill Lynch, Pierce, Fenner & Smith Incorporated (the "Underwriter") of 800
shares of auction market preferred shares of the Fund, par value $.10 per share,
liquidation preference $50,000 per share plus an amount equal to accumulated but
unpaid dividends (whether or not earned or declared) (collectively, the
"Shares") of MuniYield Pennsylvania Fund (the "Fund").

          Pursuant to Section 2 of the Purchase Agreement, the Fund agrees with
the Underwriter as follows:

          1.  The initial public offering price per share for the Shares,
     determined as provided in said Section 2, shall be $50,000.


- -------------------
(R) Registered trademark of Merrill Lynch & Co., Inc.


          2.  The purchase price per share for the Shares to be paid by the
     Underwriter shall be $49,125, being an amount equal to the initial public
     offering price set forth above less $875 per share.

          3.  The dividend rate for the AMPS for the Initial Dividend Period
     ending January 11, 1993 will be 3.15%.


                                       2


          If the foregoing is in accordance with your understanding of our
agreement, please sign and return to the Fund a counterpart hereof, whereupon
this instrument, along with all counterparts, will become a binding agreement
between the Underwriter and the Fund in accordance with its terms.

                              Very truly yours,

                              MUNIYIELD PENNSYLVANIA FUND

                              By:
                                 ----------------------------------
                                        Authorized Officer

CONFIRMED AND ACCEPTED,
     as of the date first above written:

MERRILL LYNCH & CO.
Merrill Lynch, Pierce, Fenner & Smith
         Incorporated

By:  Merrill Lynch, Pierce, Fenner and Smith
              Incorporated

By:
   ----------------------------------
           Vice President
         Investment Banking

                                       3