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NEET Sample Paper NEET Sample Test Paper-77

  • question_answer
    What amount of current will be required to evolve 20 g of chlorine in 6 h from HCl solution?

    A)  10 A                           

    B)  15 A

    C)  5 A                             

    D)  2.45 A

    Correct Answer: D

    Solution :

    According to Faraday?s first law, we know that \[\operatorname{w}\,\,=\,\,z.i. t\] \[i=\frac{w}{zt}=\frac{w\times F}{eq\,\,weight\,\,\times \,\,t}\,\,=\,\,\frac{20\times 96500}{36.5\times 360\times 60}\]            \[=\,\,\, 2.45 A\]


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