What type of a battery is the lead stora...

What type of a battery is the lead storage battery? Write the anode and the cathode reactions and the overall reaction occurring in a lead storage battery when current is drawn from it.

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When a lead storage battery is recharged:

(a) Lead Sulphate is formed

(b) Lead is formed

(d) Sulphuric acid is formed

A set of n equal resistors, of value R each, are connected in series to a battery of emf E and internal resistance R. The current drawn is I. Now, the n resistors are connected in parallel to the same battery. Then the current drawn from battery becomes 10I. The value of n is

Which oxide of lead is used in lead storage batteries, in safety matches and is a powerful oxidising agent.

PbO

`PbO_2`

`Pb_3O_4`

`2PbO.PbO_2`