JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkyne

  • question_answer
    Acetylene gas when passed through the 20% \[{{H}_{2}}S{{O}_{4}}\text{ at }{{80}^{o}}C\] gives acetaldehyde. The catalyst required for this conversion is [CPMT 1983]

    A) Anhydrous \[AlC{{l}_{3}}\]

    B) \[HgS{{O}_{4}}\]

    C) Pd

    D) Pt

    Correct Answer: B

    Solution :

      \[CH\equiv CH+{{H}_{2}}O\underset{1%\,HgS{{O}_{4}}}{\mathop{\xrightarrow{40%\,{{H}_{2}}S{{O}_{4}}}}}\,\]\[C{{H}_{2}}\underset{C{{H}_{3}}CHO}{\mathop{\underset{\downarrow \,\,\,\,\,\,\,\,}{\mathop{=CHOH}}\,\,\,\,\,\,\,\,\,}}\,\]


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