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What is dehydrologenation? Write the equ...

What is dehydrologenation? Write the equation for the formation of alkene from alkyl halide.

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Removal of one hydrogen atom and one halogen atom from adjacent carbon atoms of a compound is called dehydrohalogenation.
Alkene from alkyl halide: Ethyl chloride on heating with alc. KOH undergoes dehydrohalogenation and gives ethylene.
`underset("Ethyl bromide")(C_(2)H_(6)Br) +KOH(alc) overset(Delta)to underset("Ethylene")(C_(2)H_(4))+KBr+H_(2)O `
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