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BHU PMT BHU PMT Solved Paper-2004

  • question_answer
    In the reaction\[C{{H}_{3}}CN+2H\xrightarrow[ether]{HCl}X\xrightarrow[{{H}_{2}}O]{Boiling}Y;\]the term Y is:

    A)  acetone                             

    B)  ethyl amine

    C)  acetaldehyde                  

    D)  dimethyl amine

    Correct Answer: C

    Solution :

                     \[C{{H}_{3}}CN+2[H]\xrightarrow[ether]{HCl}\underset{(X)}{\mathop{HC\equiv CH}}\,\]     \[\xrightarrow[{}]{\Delta /{{H}_{2}}O}\underset{\begin{smallmatrix}  acetaldehyde \\  \,\,\,\,\,\,\,\,\,\,(X) \end{smallmatrix}}{\mathop{C{{H}_{3}}CHO}}\,\] \[\therefore \]Y is acetaldehyde


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