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NEET Chemistry Electrochemistry / विद्युत् रसायन Question Bank Self Evaluation Test - Electrochemistry

  • question_answer
    The standard electrode potentials \[\left( E{{{}^\circ }_{{{M}^{+}}/M}} \right)\] of four metals A, B, C and D are\[-1.2V,\text{ }0.6V,\text{ }0.85V\] and \[-0.76\text{ }V,\] respectively. The sequence of deposition of metals on applying potential is:

    A) A, C, B, D        

    B) B, D, C, A

    C) C, B, D, A        

    D) D, A, B, C

    Correct Answer: C

    Solution :

    [c] As the value of reduction potential decreases the reducing power increases i.e.  \[\begin{align}   & \,\,\,\,\,\,\,C\text{ }\,\,\,<\text{ }\,\,B\text{ }\,<\text{ }\,\,\,\,\,\,D\text{ }\,\,\,\,<\text{  }\,\,A \\  & \left( 0.85 \right).\text{ }\left( 0.6 \right).\text{ }\left( -0.76 \right)\text{ }\left( -1.2 \right) \\ \end{align}\]


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