Dehydration of alcohol is an example of which type of reaction ?

Substitution reaction

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Elimination reaction

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Rearrangement reaction

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Addition reaction

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Solution

The correct option is B Elimination reaction
Dehydration of alcohol is an example $β$ -elimination. It involves the lose of two atoms/groups from adjacent carbon atoms.
$β C H_{3} α C H_{2} O H e t h a n o l a l c . K O H \to C H_{2} = C H_{2} e t h e n e$

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