The correct order of dehydration of alcohols is

Options

A. `1^(@) gt 2^(@) gt 3^(@)`
B. `3^(@) gt 2^(@) gt 1^(@)`
C. `2 ^(@) gt 1^(@) gt 3^(@)`
D. `1^(@) gt 3^(@) gt 2^(@)`

Answer

B

Explanation

Dehydration of alcohols involves the formation of carbocation intermediates . More the stability of carbocation , more will be the ease of alcohol towards dehydration .
`because` The order of stability of carbocations is
`3^(@) gt 2^(@) gt 1^(@)`
`therefore` The order of ease of dehydrationn of alcohols is
`3^(@) gt 2^(@) gt 1^(@)`