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Which of the following is incorrect for ...

Which of the following is incorrect for a lead storage battery?

A

The anodes of a lead storage battery are filled with the spongy lead alloy

B

The cathodes are filled with lead dioxide.

C

Both electrodes are in contact with a solution of `H_(2)SO_(4)` in water

D

The electrolytic solution is about `25%` sulphuric acid by mass.

Text Solution

Verified by Experts

The correct Answer is:
D
Lead storage cell is the best known eample of a secondary battery. This voltaic cell consists of electrodes of lead alloy grids., one electrode is packed with a spongy lead to from the anode, and the other electrode is packed with lead dioxide to form the cathode. Both are bathed in an aqueous solution of sulphuric acid which is `38% H_(2)SO_(4)` by mass amd has density `1.30 g//cm^(3)`.
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