MHT CET Chemistry question

It is impossible to measure the actual voltage of any half cell by itself because

(A)Both half cell reactions occur simultaneously.
(B)Electrical neutrality is maintained.
(C)Of resistance of wire.
(D)A reaction does not take place of its own.Correct

Answer: (D)

Solution

An oxidation (or reduction) half reaction cannot take place on its own; it needs the other half cell, so only the potential difference between two half cells can be measured;

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Question ID VK-066301