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A 1 lit solution of CuSO ₄ was electrolysed till the pH of the solution become 1. A current of 0.965 A was passed through the solution for x 10^y sec with an efficiency of 20 % . Report the value of xy ( x and y are smallest integers)

Correct answer

20

Step-by-step solution

A : H ₂ O 1 2 O ₂+2 H ⁺+2 e ⁻ C : Cu ²⁺+2 e ⁻ Cu 1 mole of e ⁻=1 ~mole of H ⁺ aligned & pH =1 [ H ⁺ ]=0.1 & Faradays =0.1= 0.965 t 96500 20 100 & t =5 10^4 sec & x =5, y =4 aligned

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