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Statement A: When 2 faradays of electricity is passed through 0.1 M $H_{2} {SO}_{4} (aq)$ , 11.2 litre $O_{2}$ evolved at STP.
Statement B: Molecular weight of oxygen is 32.

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Both Statement A and Statement B are true

Both Statement A and Statement B are false

Statement A is true but Statement B is false.

Statement A is false but Statement B is true.

answer is A.

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Detailed Solution

$2 H_{2} O \to 4 H^{+} + O_{2} + 4 e GEW of Oxygen = \frac{32}{4} g = 8 g; Volume occupied by 8 g of O_{2} (STP) = \frac{22.4}{4} lit$

$1 F . . . . . . . . . . 5.6 L of O_{2} 2 F . . . . . . . . . . . 2 \times 5.6 L$

Volume of $O_{2}$ at S.T.P. = 11.2 Lit.

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