First slide

Batteries

Question

Statement 1 : Mercury cells give a constant voltage throughout its life.
Statement 2 : Electrolyte KOH is not involved in the reaction.

Easy

A

Both statements 1 and 2 are correct
B

Both statements 1 and 2 are incorrect
C

Statement 1 is correct statement 2 is incorrect
D

Statement 1 is incorrect statement 2 is correct

Solution

Mercury cell gives the constant voltage throughout its life because the overall reaction does not involve any ion in the solution, concentration of which charges during its
whole life.

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