JEE Main & Advanced Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank Heat of reaction

  • question_answer
    The energy evolved is highest for which of the following reactions           [MP PET 1994]

    A)                 \[F+{{e}^{-}}\to {{F}^{-1}}\]       

    B)                 \[Cl+{{e}^{-}}\to C{{l}^{-}}\]

    C)                 \[S+2{{e}^{-}}\to {{S}^{2-}}\]

    D)                 \[O+2{{e}^{-}}\to {{O}^{2-}}\]

    Correct Answer: B

    Solution :

              Due to high electron affinity of Cl the highest energy is evolved.


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