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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. CH3−CH2−Cl alc KOH−−−−−→−HClCH2=CH2