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EAMCET Medical EAMCET Medical Solved Paper-2009

  • question_answer
    Which of the following reactions of acetic acid involve C-OH bond... (i) Action of Na (ii) Formation of acid chloride (iii) Action with \[\text{NaHC}{{\text{O}}_{\text{3}}}\] (iv) Formation of an ester

    A)  I, II                        

    B)  II, III

    C)  III,IV                    

    D)  II, IV

    Correct Answer: D

    Solution :

                     (i) \[2C{{H}_{3}}COO\underline{H}+2Na\xrightarrow{{}}2C{{H}_{3}}COONa+{{H}_{2}}\] (ii) \[C{{H}_{3}}COO\underline{H}+PC{{l}_{5}}\xrightarrow{{}}C{{H}_{3}}COCl+POC{{l}_{3}}+HCl\] (iii) \[C{{H}_{3}}COO\underline{H}+NaHC{{O}_{3}}\xrightarrow{{}}C{{H}_{3}}COONa\]\[+{{H}_{2}}O+C{{O}_{2}}\uparrow \] (iv) \[C{{H}_{3}}CO\underline{OH}+HO{{C}_{2}}{{H}_{5}}\xrightarrow{{}}\]\[\underset{\text{ester}}{\mathop{C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}}}\,+{{H}_{2}}O\] It is clear from the above reactions that Eq. (II) and (IV) involve C?OH bond.


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