The electrochemical cell stops working after some time because:
The electrochemical cell stops working after some time because:
A. electrode potentials of both the electrodes becomes zero
B. electrode potentials of both the electrodes becomes equal
C. one of the electrode is eaten way
D. the reaction starts proceeding in opposite direction .
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Correct Answer - B
Current flows due to difference in electro potentials of the two electrodes .
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