First slide

Electrochemical cell

Question

Find out the correct statement.

Easy

A

Zn dissolves at anode and copper deposits at cathode
B

Zn dissolves at cathode and copper deposits at anode
C

Zn deposits at cathode and copper dissolves at anode
D

Zn deposits at anode and copper dissolves at cathode

Solution

Increase in external potential starts reaction in opposite direction. Zn acts as cathode and Zn⁺²is reduced to Zn and is deposited
Cu acts as anode and cu dissolves as Cu⁺²

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