During dehydration of alcohols to alkenes by heating with conc. $H_{2} S O_{4}$ the initiation step is

Protonation of alcohol molecule

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Formation of carbocation

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Elimination of water

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Formation of an ester

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Solution

The correct option is C Protonation of alcohol molecule
$H_{2} S O_{4} \to H^{+} + H S O_{4}^{-}$
In the first step protonation of alcohol molecule takes place.
Option A is correct.

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