1.

Alcoholic solution of KOH is used for ,A. DehydrationB. DehydrogenationC. DehydrohalogenationD. Dehalogenation

Answer» Correct Answer - C
`CH_(3)-CH_(2)-Br+underset((alc))(KOH)overset("dehydrohalogenation")toCH_(2)=CH_(2)+HBr+H_(2)O`
In alcoholic KOH alkoxide ions `(RO^(-))` are present which is a strong base. They abstract proton from `beta`-carbon of alkyl halide and favours elimination reaction.
`ROH+KOHtounderset("ptassium alkoxide")(ROK)+H_(2)`
`RO^(-)+H-overset(beta)(C)H_(2)-overset(alpha)(C)H_(2)-Br`


Discussion

No Comment Found

Related InterviewSolutions