JEE Main 2022 Chemistry question
A 100 mL solution of on treatment with methanol produces 2.24 mL of a gas at STP. The weight of gas produced is mg. [nearest integer]
Answer: 3
Solution
CH_{3}CH_{2}MgBr + CH_{3}OH \to CH_{3}CH_{3} + Mg(OCH_{3})Br. The moles of ethane produced = $2.24
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