Grignard reagent RMgBr(P) reacts with water and forms a gas (Q). One gram of Q occupies 1.4 dm at STP. (P) on reaction with dry ice in dry ether followed by H3O + forms a compound (Z). 0.1 mole of (Z)

Question

Grignard reagent RMgBr(P) reacts with water and forms a gas (Q). One gram of Q occupies 1.4 dm at STP. (P) on reaction with dry ice in dry ether followed by H3O + forms a compound (Z). 0.1 mole of (Z) will weigh ________ g. (Nearest integer)

Prashant Kotian · Accepted Answer

Correct answer: .. 1.4 dm 3 (or 1.4 mL) occupied by 1 gm  Molecular weight of Q =  22.4 1.4  Q is CH4 gas and Grignard reagent is CH3MgBr  CH3MgBr    3 (i)CO (dryice) (ii) H O CH3COOH (Molecular weight 60)  Weight of 0.1 mole of CH3COOH = 6 ALLEN

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