1.

Which of the following are the active materials of a lead-acid cell?1) Lead Peroxide (PbO2) for positive plate2) Sponge Lead (Pb) for negative plate3) Concentrated Sulphuric acid (H2SO4) as electrolyte4) Dilute Sulphuric acid (H2SO4) as electrolyte

A. 1, 2 and 3 only
B. 1, 2 and 4 only
C. 1 and 3 only
D. 2 and 4 only
Answer» C. 1 and 3 only


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