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Question

Alcoholic KOH is used for:

A
dehydration
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B
dehydrogenation
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C
dehydrohalogenation
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D
dehalogenation
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Solution

The correct option is B dehydrohalogenation
Alcoholic KOH is used for dehydrohalogenation. A molecule of hydrogen halide is lost from alkyl halide to form alkene.
CH3CH2Cl alc KOH−−−−HClCH2=CH2

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