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TS EAMCET · Chemistry · Electrochemistry

The extent of charge of lead accumulator is determined by

  1. A amount of \(\mathrm{PbSO}_4\) in the battery
  2. B amount of \(\mathrm{PbO}_2\) in the battery
  3. C specific gravity of \(\mathrm{H}_2 \mathrm{SO}_4\) of the battery
  4. D amount of \(\mathrm{Pb}\) in the battery
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Answer & Solution

Correct Answer

(C) specific gravity of \(\mathrm{H}_2 \mathrm{SO}_4\) of the battery

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Detailed explanation

In a fully charged lead accumulator or lead storage battery, sulphuric acid has a specific gravity (i.e., density that varies from 1.260 to 1.285. But during discharge (i.e., when the battery is in use). \(\mathrm{H}_2 \mathrm{SO}_4\) is used up.…