RAJASTHAN PMT Rajasthan - PMT Solved Paper-2004

  • question_answer
    Whose electron affinity will be less than zero?    

    A)  \[{{O}^{2-}}\]

    B)  \[{{S}^{2-}}\]

    C)  both (a) and (b)

    D)  \[{{O}^{+}}\]

    Correct Answer: C

    Solution :

    The electron affinity of \[{{O}^{2-}}\] and \[{{S}^{2-}}\] will be negative (i.e., less than zero) as energy is required to add an electron to them. (i.e., process is endothermic).


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