Which of the following cells has a constant voltage through-out its life?A. Leclanche cellB. Daniell cellC. Mercury cellD. Electrolytic cell

Which of the following cells has a constant voltage through-out its li

1.	Which of the following cells has a constant voltage through-out its life?A. Leclanche cellB. Daniell cellC. Mercury cellD. Electrolytic cell
Answer» Correct Answer - C Because there is no change in electrolyte composi-tion during operation (the overall cell reaction involves only solid substances) the mercury cell provides a more constant voltage `(1.35 V)` than other cells.

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What are elementary reactions ?

Which of the following cells has a constant voltage through-out its life?A. Leclanche cellB. Daniell cellC. Mercury cellD. Electrolytic cell

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