Question

Ni(s) + 2Ag+ (aq) → Ni2+ (aq) + 2Ag(s)
For the above reaction depict the cell, individual half reactions and predict which one is cathiode and anode.​

Answer 1

ANSWER

The galvanic cell in which the given reaction takes place is depicted as:

Zn(s)∣Zn

2+

(aq)∣∣Ag

+

(aq)∣Ag(s)

(i) The negatively charged electrode is the zinc electrode. It acts as an anode.

(ii) In the external circuit, the current will flow from silver to zinc.

(iii) Oxidation at anode: Zn(s)→Zn

2+

(aq)+2e

−

Reduction at cathode: Ag

+

(aq)+e

−

→Ag(s)