WAEC Physics 2020 Objective — Question 9
Question 9 of 50 from the West African Examinations Council (WAEC) Physics 2020 Objective paper, with the correct answer and a full explanation.
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The depolarizing agent in a Leclanche cell is
- A. carbon rod
- B. ammonium chloride
- C. manganese (IV) oxideCorrect
- D. zinc plate
Explanation
The Leclanche cell is the most common dry cell containing ammonium chloride as the electrolyte, negative terminal (anode) zinc plate, positive terminal (cathode) carbon rod, and manganese dioxide (MnO2) as the depolarizer.
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