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Which of the following is not correct fo...

Which of the following is not correct fo mercury cell?

A

It consists of `Zn-Hg` amalgam as anode

B

It consists of a paste of `HgO` and carbon as the cathode

C

The electrolyte is a paste of `KOH` and `ZnO`.

D

It is suitable for high current devies.

Text Solution

Verified by Experts

The correct Answer is:
D
The mercury battery is used extensively in medicine and electronic industries and is more expensive than the common dry cell.
Commonlu used mercury cells are small button like cells. They are suitable for low current devices like hearing aids, watches, etc.
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