Question

estion 27 expected from the following reaction? Ahat product is expected from the folle og den and IV V Question 28 The expected product of the following reaction is: OH OH ш IV v A B) C) D) E) I II III IV V

Answer 1

Ans-27)

The reaction of alkenes with halogen (Br₂) in presence of water is known as halohydration of Alkenes. Both halogen and hydroxide group adds anti to each other. And this addition occurs according to Markovnikov’s rule such that the positive part of the reagent goes to the less substituted side of the carbon-carbon double bond.

--t ОН Но + Н-Br с- Br-Br -С- Br

Therefore, the given reaction proceeds such that OH goes to the more substituted carbon and bromine atom goes to less substituted carbon atom.

Br2 HO НOBrt + HBr ОН Br H O Br 1-methylcyclopentene 2-Bromo-1-methylcyclopentanol

Therefore, correct option is (IV)