Q.

What is I, II and electrolyte used in the above figure?

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I - Spongy leadII - PbO2III - 50% H2SO4 solution

I - Spongy leadII - PbO2III - 38% H2SO4 solution

I - PbO2II - Spongy leadIII - 50% H2SO4 solution

I - PbO2II - Spongy leadIII - 38% H2SO4 solution

answer is B.

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Detailed Solution

Lead storage battery consists of spongy lead anode and a grid of lead packed with lead dioxide (PbO2) as cathode. 38% solution of H2SO4 is used as an electrolyte.

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