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JEE Main & Advanced Chemistry Electrochemistry / विद्युत् रसायन Question Bank Cell constant and Electrochemical cells

  • question_answer
    If hydrogen electrode dipped in 2 solution of \[pH=3\] and \[pH=6\] and salt bridge is connected the e.m.f. of resulting cell is     [DPMT 2005]

    A)                 0.177 V

    B)                 0.3 V

    C)                 0.052 V

    D)                 0.104 V

    Correct Answer: A

    Solution :

               \[{{E}_{cell}}=-0.059\log \frac{{{10}^{-6}}}{{{10}^{-3}}}=-0.059\log {{10}^{-3}}\]                                 \[=-0.059\times (-3)=0.177V\].


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