A lead storage battery has been used for one month (30 days) at the rate of one hour per day by drawing a constant current of 2 amperes. `H_(2)SO_(4)` consumed by the battery is:-A. 1.12 moleB. 2.24 moleC. 3.36 moleD. 4.48 mole

A lead storage battery has been used for one month (30 days) at the ra

1.	A lead storage battery has been used for one month (30 days) at the rate of one hour per day by drawing a constant current of 2 amperes. `H_(2)SO_(4)` consumed by the battery is:-A. 1.12 moleB. 2.24 moleC. 3.36 moleD. 4.48 mole
Answer» Correct Answer - B The reactions occurring during discharge are: Anode: `Pb(s)+SO_(4)^(2-)(aq)toPbSO_(4)(s)+2e^(-)` `underset("At cathode:"PbO_(2)(s)+4H^(+)(aq)+SO_(4)^(2-)(aq)+2e^(-)toPbSO_(4)(s)+2H_(2)O(l))` Overall reaction reaction: `Pb(s)+PbO_(2)(s)+2H_(2)SO_(4)to2PbSO_(4)(s)+2H_(2)O(l)` Quantity of electricity consumed `=(2A)(30xx3600s)=216000C` `2xx96500` coulombs consume `H_(2)SO_(4)=2` moles `therefore216000` coulombs will consume `H_(2)SO_(4)` `=(1)/(96500)xx216000=2.24` moles.

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A lead storage battery has been used for one month (30 days) at the rate of one hour per day by drawing a constant current of 2 amperes. `H_(2)SO_(4)` consumed by the battery is:-A. 1.12 moleB. 2.24 moleC. 3.36 moleD. 4.48 mole

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