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

  • question_answer
    The standard EMF for the cell reaction, \[Zn+C{{u}^{2+}}\xrightarrow{{}}Cu+Z{{n}^{2+}}\] is 1.1 volt at \[25{}^\circ C.\] The EMF for the cell reaction, when \[0.1\,MC{{u}^{2+}}\] and \[0.1MZ{{n}^{2+}}\] solutions are used, at \[25{}^\circ C\]  is

    A) 1.10 V              

    B) 0.10 V

    C) \[-1.10\text{ }V\]           

    D) \[-0.110\text{ }V\]

    Correct Answer: A

    Solution :

    [a] Since concentration of ions is the same hence \[{{E}_{cell}}=E_{cell}^{{}^\circ }\]


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