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Q. The product/s following reaction is (are) $ C_{2}H_{5}Br+2Na+CH_{3} Br \xrightarrow{\text{Dry ether}} $ ?

AMUAMU 2014Hydrocarbons

Solution:

When two different alkyl halides are heated with sodium metal in the presence of dry ether, a mixture of different alkanes (having double or more the number of carbon atoms as present in the parent halide) is obtained. This, reaction is called $Wurtz$ reaction
$C_{2}H_{5}Br+2Na+CH_{3}Br \xrightarrow{\text{Dry ether}} \underset{\text{ethane}}{{CH_{3}—CH_{3}}} + \underset{\text{Butane}}{{C_{2}H_{5} —C_{2}H_{5}}}+\underset{\text{propane}}{{C_{2}H_{5} — CH_{3}}}$