First slide

Electrochemical cells

Question

The measured reduction potential for the reaction
Zn²⁺ + 2e^– → Zn (s) depends upon

Moderate

A

Area of Zn plate
B

Percentage of purity of Zn plate
C

Temperature
D

Concentration of Zn ²⁺ in solution

Solution

E_Cell = E⁰_red+0.0591/n log [Zn²⁺]
depends on
(i) Concentration of Zn ⁺²
(ii) Temperature
(iii) Nature of electrode
Hence, (3) and (4) are correct.

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