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Ethene is prepared from chloroethane this is an example of a reaction __________

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Ethene is prepared from chloroethane this is an example of a reaction __________

(a) from alkynes

(b) removal of vicinal dihalides

(c) acidic dehydrogenation

(d) dehydrohalogenation

I got this question during an internship interview.

This intriguing question comes from Hydrocarbons topic in section Hydrocarbons of Chemistry – Class 11

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The correct option is (d) dehydrohalogenation

The best I can explain: When chloroethane is heated in the presence of alcoholic potassium Hydroxide, a beta-elimination product is formed, that is ethane, hydrogen, and chlorine are removed which is dehydrohalogenation (the halogen can be either chlorine or bromine or iodine).

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