JEE Main Chemistry question

It is impossible to measure the actual voltage (potential) of any single half-cell by itself because

(A)Both half-cell reactions (oxidation and reduction) must take place simultaneously for current to flowCorrect
(B)Of the resistance of the wire
(C)A reaction does not take place on its own
(D)None of the above

Answer: (A)

Solution

A complete electrical circuit (and hence a measurable potential difference/current) requires both an oxidation half-reaction and a reduction half-reaction occurring together; a

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Question ID VK-143892