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Question
Class 12ChemistryElectrochemistry

Depict the galvanic cell in which the reaction Zn(s) + 2 Ag+ (aq) → Zn2+ (aq) + 2Ag(s) takes place. Further, show 

(i) Which of the electrodes is negatively charged ?

(ii) the carriers of the current in the cell.

(iii) Individual reaction at each electrode.

Verified Answer

The set-up will be similar to that shown in Fig. 3.10. The cell will be represented as: Zn(s) | Zn2+ (aq) | | Ag+ (aq) | Ag (s)

(i) Anode, i.e., zinc electrode will be negatively charged.

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

(iii) At Anode : Zn(s) → Zn2+ (aq) + 2e

       At Cathode : Ag+(aq) + e → Ag

Depict the galvanic cell in which the reaction Zn(s) + 2 Ag+ (aq) → Zn2+ (aq) + 2Ag(s) takes place. Further, show (i) Which of the electrodes is negatively charged ?(ii) the carriers of the current in the cell.(iii) Individual reaction at each electrode. | Shiksha Nation