When `3,3-`dimethyl`-2-`butanol is heated with `H_(2)SO_(4)` the major product obtained is

Options

A. Cis and trans isomers of 2, 3-dimethyl-2-butene
B. 3, 3-dimethyl-1-butene
C. 2, 3-dimethyl-2-butene
D. 2, 3-dimethyl-1-butene

Answer

C

Explanation

`underset("3,3-dimethyl - 2-butanol")(CH_(3)-underset(OH)underset(|)CH-overset(CH_3)overset(|)C-CH_3 overset(H_2SO_4)rarr)`
`CH_(3)- overset(+)(CH)-overset(CH_3)overset(|)underset(2^@ "carboniumion")underset(CH_3)underset(|)C-CH_3 + OH^(-) overset("methyl shif")underset("rearrangement")rarr`
`underset("[Most symmetrial Structure]")underset("2,3- dimethyl-2-Butene")(CH_3-overset(CH_3)overset(|)C=overset(CH_3)overset(|)C-CH_(3)) underset(-H^+)larr underset(3^@ "Carbonium ion (Morestable)")(CH_3-overset(CH_3)overset(|)CH-overset(CH_3)overset(|)underset(+)(C)-CH_(3))`