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Q.

In a lead-storage cell, the emf

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a

 increases with increase in the percentage of H2SO4

b

decreases with increase in the percentage of H2SO4

c

does not change with increase in the percentage of H2SO4

d

is not affected by the change in temperature of the cell

answer is A.

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Detailed Solution

In a lead-storage cell, the emf increases with increase in the percentage of H2SO4

A storage cell with a lead dioxide positive plate, a spongy lead negative plate, and diluted sulfuric acid as the electrolyte is a lead-storage cell.

Hence option A is correct

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