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Question

Chemistry Question on Alkenes

Propene on addition with HI,HI, gives:

A

CH3−CHI−CH3CH _{3}- CHI - CH _{3}

B

CH3−CH2−CH3ICH _{3}- CH _{2}- CH _{3} I

C

CH3−CHI−CH2ICH _{3}- CHI - CH _{2} I

D

none of the above

Answer

CH3−CHI−CH3CH _{3}- CHI - CH _{3}

Explanation

Solution

Propene adds on HI according to Markownikoffs reaction. CH3−CH=CH2+HI⟶CH3−CI∣H−CH32-iodo-propaneCH _{3}- CH = CH _{2}+ HI \longrightarrow \underset{\text{2-iodo-propane}}{CH _{3}- \underset{\overset{|}{I}}{C}H - CH _{3}}