JEE Main & Advanced JEE Main Paper (Held On 26 May 2012)

  • question_answer
    The hydration of propyne results in formation of.   JEE Main Online Paper (Held On 26-May-2012)  

    A)  Acetone                             

    B)                        Propanol-1

    C)                        Propene                             

    D)                        Propanal

    Correct Answer: A

    Solution :

                    \[\underset{\Pr opyne}{\mathop{C{{H}_{3}}-C\equiv CH}}\,+{{H}_{2}}O\xrightarrow[HgS{{O}_{4}}]{{{H}_{2}}S{{O}_{4}}}\] \[\underset{2-\Pr opene\,(unstable)}{\mathop{\left[ C{{H}_{3}}-\overset{\begin{smallmatrix}  OH \\  | \end{smallmatrix}}{\mathop{C}}\,=C{{H}_{2}} \right]}}\,\underset{{}}{\longleftrightarrow}\underset{2-\Pr opanone\,(acetone)}{\mathop{C{{H}_{3}}-\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}}}\,\]


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