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Q.

The volume of oxygen liberated at STP by decomposition of one L hydrogen peroxide solution with a strength of 17g per litre ?

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a

1.12L

b

2.8 L

c

5.6 L

d

11.2L

answer is C.

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Detailed Solution

2H2O2 → 2H2O + O2

2 times 34gr --------- 22.4 Lit

17gr -------------- ??

large frac{17 times 22.4}{2 times 34} = frac{22.4}{4} = 5.6 Lit

large therefore 5.6Lit of O2 liberated at STP from 17gr of H2O2 solution.

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