First slide

Activity Series (OR) Electro chemicals series

Question

A galvanic cell is constructed using SHE and another electrode $' X'$ under standard conditions. $' X'$ in this cell is the negative electrode then $' X'$ is

Moderate

A

Zinc electrode
B

Copper electrode
C

Silver electrode
D

Chlorine electrode

Solution

SRP value of Copper, Silver and Chlorine electrodes is positive.
SRP of Hydrogen electrode is zero;
SRP value of Zinc electrode is negative;
So when connected to SHE spontaneous oxidation occurs at Zn electrode, Zn electrode is anode or negative electrode.

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