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CMC Medical CMC-Medical Ludhiana Solved Paper-2012

  • question_answer
    The heat of hydrogenation of \[C{{H}_{2}}=C{{H}_{2}}\]is 30 kcal/mol, what is the heat of hydrogenation of 1, 3 butadiene?

    A)  63 kcal/mol       

    B)  57 kcal/mol

    C)  60 kcal/mol       

    D)  30 kcal/mol

    Correct Answer: B

    Solution :

                                    The heat of hydrogenation of 1, 3-butadiene is 57 kcal/mol due to the - conjugation in 1, 3-butadiene.


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