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The number of electrons involved in the electro deposition of 63.5 g. of Cu from a solution of CuSO4 is 

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By Expert Faculty of Sri Chaitanya
a
6.0 × 1023
b
3.011 × 1023
c
12.04 × 1023
d
6.02 × 1022

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detailed solution

Correct option is C

Atomic mass of Cu = 63.5 

Moles of Cu = 1 gmol-1.

Cu2++2e-Cu 

To deposit  1 mol of Cu , 2 mol of electron required. 

1 mol = 6.023 X 1023.

to deposit 63.5 g of Cu , 2 X 6.023 X 1023.electrons are required 

i.e., 12.04 X 1023. electrons required.

 


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