1.

The density of `Cu` is `8.94 g cm^(-3)`. The quantity of electricity neede to plate an area `10 cm xx 10 cm` to a thickenss of `10^(-2) cm` using `CuSO_4` solution qould be .A. ` 13586 C`B. ` 27172 C`C. ` 40758C`D. ` 20348 C`

Answer» Correct Answer - B
`(axx b xx c) xx rho = (Eit)/(96500)`
`(10 xx 10xx 10^(-2)) xx (8.94) = (63.5)/2 xx (It)/(96500)`
(It) `= 27172 C`.


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