1. Tardigrade
  2. Question
  3. Chemistry
  4. A 100 mL solution of CH 3 CH 2 MgBr on treatment with methanol produces 2.24 mL of a gas at STP. The weight of gas produced is mg. [nearest integer]

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A $100 \,mL$ solution of $CH _3 CH _2 MgBr$ on treatment with methanol produces $2.24\, mL$ of a gas at STP. The weight of gas produced is ______$mg$. [nearest integer]

JEE MainJEE Main 2022Alcohols Phenols and Ethers

Solution:

$ CH _3- CH _2- MgBr + CH _3 OH \longrightarrow$
$ CH _3- CH _3+ Mg <^{ OCH _3}_{Br} $
$ n =\frac{2.24 \times 10^{-3}}{22.4}=10^{-4}$
$W = n \times M $
$=10^{-4} \times 30=3 mg$