Explain dehydrohalogenation of a alkyl halide.

1.	Explain dehydrohalogenation of a alkyl halide.
Answer» Solution :When alkyl halides areheated with alcoholic potash dehydrohalogenation TAKES place giving alkenes. In this reaction, halogen is removed from the `alpha` - carbon while HYDROGEN is removed from the `beta`-carbon. Hence it is `beta`-elimination reaction. `CH_(3) - underset("1 - Bromopropane(Propyl BROMIDE)")(CH_(2) - CH_(2) - Br) + KOH_(alc) overset(" " DELTA "")(rarr) CH_(3) - underset("Propene")(CH) = CH_(2) + KBr + H_(2)O`

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