JEE Main 2016 · 9 Apr · Shift 1 · Chemistry Q54

ChemistrySingle correct+4 / -1Question 54 of 90

The gas evolved on heating $\ce{CH3MgBr}$ in methanol is :

HBr

Methane

Ethane

Propane

Answer and worked solution

Official answer: B

Methanol's acidic O-H protonates the Grignard reagent: $\ce{CH3MgBr + CH3OH -> CH4 + Mg(OCH3)Br}$ .

JEE Main 2016 · 9 Apr · Shift 1, Chemistry question 54