1.

Assertion: As a lead storage battery gets discharged, density of the electrolyte present in it decreases. Reason: lead and lead dioxide both react with sulphuric acid to form lead sulphate.

Answer»

If both ASSERTION and reason are true, and reason is the true explanation of the assertion
if both assertion and reason are true, but reason is not the true explanation of the assertion.
if assertion is true, but reason is false.
If both assertion and reason are false.

Solution :R is the correct explanation of A because sulphuric acid is consumed due to formation of LEAD SULPHATE and HENCE density decreases.


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