A current of 2 A was passed for 1 h through a solution of CuSO4. 0.23 7g of Cu2+ ions was discharged at cathode. The current efficiency is

Question

A current of 2 A was passed for 1 h through a solution of CuSO4. 0.23 7g of Cu2+ ions was discharged at cathode. The current efficiency is (A) 42.2 % (B) 26.1 % (C) 10 % (D) 40.01 %

Tardigrade Admin · Accepted Answer

W=(63.5/2×96500)×60×60=237 g % of efficiency =(0.237/2.37)× 100 = 10 %

Q. A current of 2 A was passed for 1 h through a solution of $C u S O_{4} .0.237 g$ of $C u^{2 +}$ ions was discharged at cathode. The current efficiency is

$42.2%$

$26.1%$

$10%$

$40.01%$

$W = \frac{63.5}{2 \times 96500} \times 60 \times 60 = 237 g$
$% o f e ff i c i e n cy = \frac{0.237}{2.37} \times 100 = 10%$

Q. A current of 2 A was passed for 1 h through a solution of CuSO4​.0.237g of Cu2+ ions was discharged at cathode. The current efficiency is

42.2%

26.1%

10%

40.01%