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JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Chemical Effect of Current

  • question_answer
    The amount of charge required to liberate 9 gm of aluminium (atomic weight = 27 and  valency = 3) in the process of electrolysis is (Faraday's number = 96500 coulombs/gm equivalent)

    A)                    321660 coulombs        

    B)                    69500 coulombs

    C)                    289500 coulombs        

    D)                    96500 coulombs

    Correct Answer: D

    Solution :

                       Equivalent weight of aluminium \[=\frac{27}{3}=9\] So 1 faraday = 96500 C are required to liberate 9 gm of Al.


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