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JEE Main & Advanced Chemistry Electrochemistry / विद्युत् रसायन Question Bank Faraday's law of electrolysis

  • question_answer
    On passing 3 ampere of electricity for 50 minutes, 1.8 gram metal deposits. The equivalent mass of metal is [MP PMT 1992]

    A)                 20.5       

    B)                 25.8

    C)                 19.3       

    D)                 30.7

    Correct Answer: C

    Solution :

               \[{{W}_{\text{metal}}}=\frac{E\times I\times t}{96500}=\frac{E\times 3\times 50\times 60}{96500}\]                                 \[E=\frac{96500\times w}{3\times 50\times 60}=\frac{96500\times 1.8}{3\times 50\times 60}=19.3\].


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