CBSE Class 12 Chemistry Electrochemistry Online Test Set A

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Question 1

Question

Through a solution of CuSO4 a current of 3 amperes was passed for 2 hours. At cathode 3 g of Cu2+ions were discharged. The current efficiency is [At. wt. of Cu = 63.5]

Answer

54.4%

33.3%

42.2%

48.7%