3. which one of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torchlights, electric shaver etc.

Q.

Which one of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torchlights, electric shaver etc. ?

A Iron and Cadmium
B Lead peroxide and lead
C Zinc and Carbon
D Nickel and Cadmium
Answer & Explanation
Option: [D]

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