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NEET Chemistry NEET PYQ-Electrochemistry

  • question_answer
    Standard electrode potential of three metals X, Y and Z are -1.2 V, + 0.5 V and -3.0 V respectively. The reducing power of these metal will be [AIPMT (S) 2011]

    A) \[Y>X>Z\]

    B) \[Z>X>Y\]

    C) \[X>Y>Z\]

    D) \[Y>Z>X\]

    Correct Answer: B

    Solution :

    [b] \[E_{X}^{o}=-1.2V;\]
    \[E_{Y}^{o}=+0.5V;\]
    \[E_{Z}^{o}=-3.0V;\]
    \[\therefore Z>X>Y\][\[\because \]higher the reduction potential, lesser the reducing power.


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