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Q.
Identify the product of the following reaction.
$ClCH_2CH_2CH_2Br + KCN \rightarrow$ Product
Haloalkanes and Haloarenes
Solution:
The IUPAC name of the compound $ClCH _{2} CH _{2} CH _{2} Br$ is 1-Bromo-3-chloropropane. When 1-Bromo-3-chloropropane reacts with $KCN$ i.e potassium cyanide, the product formed is:
$ClCH _{2} CH _{2} CH _{2} Br + KCN \longrightarrow ClCH _{2} CH _{2} CH _{2} CN + KBr$
[Note: $Br ^{-}$is better-leaving group than $Cl ^{-}$.]