Question

Conversation of 1but-ene into 1but-enol

Answer 1

Explanation:

CH3-CH2-CH=CH2 +HBr--->

CH3-CH2-CH(Br)-CH3

This reaction happens according to Markonikoffs rule

Now reacting this with alcoholic KOH gives alkenes

CH3-CH2-CH(Br)-CH3 + KOH (alc)——-> CH3CH=CHCH3 + KBr + H2O