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1.12 ml of a gas is produced at STP by the action of 4.12 mg of alcohol (ROH) with CH3MgI.

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1.12 ml of a gas is produced at STP by the action of 4.12 mg of alcohol (ROH) with CH3MgI. The molecular mass of alcohol is 

(a) 16.0

(b) 41.2

(c) 82.4

(d) 156.0

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Correct option is (c) 82.4

Mol. mass of the alcohol = \(\frac{4.12 \times 22400}{1000 \times 1.12}\) = 82.4

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