The gas evolved on heating C H 3 M g B r in methanol is:

1. Methane
2. Ethane
3. Propane
4. HBr

Solution

${\mathrm{CH}}_3\mathrm{OH}$ having acidic $\mathrm{H}$ so in ${\mathrm{CH}}_3\mathrm{MgBr}$ the ${{\mathrm{CH}}_3}^{-}$ will react as a base and form ${\mathrm{CH}}_4$ by acid-base reaction.

Asked in: JEE Main 2016 (09 Apr Online)

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