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Why does the cell potential of mercury c...

Why does the cell potential of mercury cell remain constant throughout its life ?

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This is due to the reason that the overall reaction does not involve any ions in the solution whose concentration changes during the reaction.
`Zn(s)+H_(2)O(s) to ZnO(s)+H_(2)O(l)`
For more details, consult Section 22.
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Why a mercury cell gives a constant voltage throughout its life ?

Why does mercury cell gives a constant voltage throughout its life ?

Mention the reactions occurring at (i) anode, (ii) cathode, during working of a mercury cell. Why does the voltage of a mercury cell remain constant during its operation?

Why does the rate of a reaction not remain constant throughtout the reaction?

The questions consist of two atatements each, printed as Assertion and Reason. While answering these questions you are required to choose any one of the following four responses : The cell potential of mercury cell is 1.35 V , which remains constant . In mercury cell, the electrolute is a paste of KOH and ZnO.

The questions consist of two atatements each, printed as Assertion and Reason. While answering these questions you are required to choose any one of the following four responses : The cell potential of mercury cell is 1.35 V which remanins constant. In mercury cell, the electrolyte is a passte of KOH and HgO .

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