MEDIUMMCQ SINGLENEET ChemistryOrganic ChemistryHydrocarbonsPreparation of Alkenes

Cyclohexene is best prepared from cyclohexanol by which of the following?

A.conc. H3PO4✓ Correct

B.conc. HCl/ZnCl2

C.conc. HCl

D.conc. HBr

Explanation

Phosphoric acid is the strongest acid among the given compounds. It acts as an acid catalyst for the dehydration of cyclohexanol to give cyclohexene as a dehydrated product.

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