Zn(s)।Zn2+(aq)।।Cu2+(aq)।Cu(s);কোষটির ক্যাথোডে কোন বিক্রিয়াটি ঘটে?

A Zn→Zn2++2e-

B Cu2++2e-→Cu

C Zn2++2e-→Zn

D Cu→Cu2++2e-

Solution

Correct Answer: Option B

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