Consider the following materials: 1) Lead peroxide 2) Spon

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Technical

22

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Consider the following materials:
1) Lead peroxide
2) Sponge lead
3) Dilute sulphuric acid
Which of the above, are active materials of a lead-acid battery?

[ESE 2019 Paper 2 (Technical) ECE]

A 1 and 2 only

B 1 and 3 only

C 2 and 3 only

D 1, 2 and 3