JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkyne

  • question_answer
    Which of the following has acidic hydrogen [IIT-JEE 1985, 89; CPMT 1986; Bihar MEE 1997; RPET 1999; AFMC 1999]

    A) Ethyne

    B) Ethene

    C) Ethane

    D) Benzene

    Correct Answer: A

    Solution :

               \[2CH\equiv CH+2Na\to 2CH\equiv {{C}^{-}}N{{a}^{+}}+{{H}_{2}}\] Reaction with sodium metal shows that hydrogen is acidic.


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