A. copper sulphate, copper and zinc
B. manganese dioxide, carbon and zinc
C. sulphuric acid, lead oxide and lead
D. potassium hydroxide, nickel and iron.
Correct Answer:
Option A – copper sulphate, copper and zinc
Explanation
In the Daniel cell,
i. Depolarize = CuSO4 solution
ii. Positive electrode = Copper container
iii Negative electrode = zinc rod/plate
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