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JCECE Engineering JCECE Engineering Solved Paper-2003

  • question_answer
    The standard reduction potential of\[L{{i}^{+}},\,B{{a}^{2+}},\,\,N{{a}^{+}}\]and\[M{{g}^{2+}}\]are\[-3.05,\,\,-2.73,\]\[-2.71\] and \[-2.37\] volts respectively. Which one is the strongest reducing agent?

    A) \[Li\]                                     

    B) \[Na\]

    C) \[Mg\]                                 

    D)  \[Ba\]

    Correct Answer: A

    Solution :

    Key Idea: Smaller the value of reduction potential; stronger will be reducing agent. Reduction potential value indicate the ease of oxidation. Reducing agent itself undergoes oxidation. \[\therefore \]  \[L{{i}^{+}}\]has least reduction potential. \[\therefore \]  It is strongest reducing agent among given choices.


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