CET Karnataka Medical CET - Karnataka Medical Solved Paper-2001

  • question_answer
    The quantity of electricity required to liberate \[112c{{m}^{3}}\]of hydrogen at STP from acidified water is:

    A)  965 Coulombs

    B)  1 Faraday

    C)  0.1 Faraday  

    D)  96500 Coulombs

    Correct Answer: A

    Solution :

    We know that 96,500 coulombs \[=11,200c{{m}^{3}}\]of \[{{H}_{2}}\] \[\therefore \] \[112\,c{{m}^{2}}\] of  \[{{H}_{2}}=\frac{96500\times 112}{11200}\] = 965 coulombs


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