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Q.

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. H2SO4 consumed by the battery is

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a

1.12 mole

b

 2.24 mole

c

3.36 mole

d

4.48 mole 

answer is B.

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Detailed Solution

In lead storage battery 2F consumed = 2 moles H2SO4 consumed.

Total current passed = 30 x 60 x 60 x 2 =216000 Coulombs.

Number\;of\;moles\;of\;H_{2}SO_{4}\;consumed\;=\frac{216000\times 2}{2\times 96500}\;\cong 2.24\;mole

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