Waec Model Questions Vol1 2023 Chemistry Question 10

Practice objective / multiple choice question 10 from the 2023 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2023 Chemistry Objective / Multiple Choice Hard Difficulty
Question 10 WAEC_MODEL_QUESTIONS_VOL1 • 2023 • CHEMISTRY • objective

A galvanic cell is constructed as follows: Zn|Zn²⁺ (0.010 M)||Cu²⁺ (0.10 M)|Cu. The standard electrode potentials are E°(Zn²⁺/Zn) = -0.76 V and E°(Cu²⁺/Cu) = +0.34 V. (a) Calculate the cell EMF at 25 °C using the Nernst equation. (b) If the cell is connected to an external source that forces current in the opposite direction, which metal will be deposited at the cathode?

Answer Options

A. 0.58 V; Cu
B. 0.86 V; Zn
Correct Answer C. 1.13 V; Zn
D. 1.13 V; Cu
Correct Answer
C
Correct Option:
1.13 V; Zn

About This Question

This is Waec Model Questions Vol1 2023 Chemistry Question 10. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

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