JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkane

  • question_answer
    Which of the following is not an endothermic reaction [J & K 2005]

    A) Dehydrogenation

    B) Ethane to ethene

    C) Combustion of propane

    D) Change of chlorine molecule into chlorine atoms.

    Correct Answer: C

    Solution :

    The enthalpy of combustion i.e., \[\Delta H\] is always negative. It means combustion is an exothermic reaction.


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