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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2009

  • question_answer
    In the electrolysis of acidulated water, it is desired to obtain \[1.12cc\]of hydrogen per second under STP condition. The current to be passed is

    A)  \[1.93A\]

    B)  \[9.65A\]

    C)  \[19.3A\]

    D)  \[0.965A\]

    Correct Answer: B

    Solution :

    No. of moles of \[{{H}_{2}}=\frac{1.12}{22400}\] No. of equivalence of hydrogen \[=\frac{1.12\times 2}{22400}={{10}^{-4}}\] No. of Faradays required \[={{10}^{-4}}\] \[\therefore \]Current to be passed in one second \[=96500\times {{10}^{-4}}\] \[=9.65A\]


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