Question

when hbr is added to allyl bromide in absence of peroxide product form is 1,2 dibromopropane which reactions are responsible

Answer 1

Explanation:

In the presence of peroxide, addition of HBr to unsymmetrical alkenes like propene takes place according to anti markonikov's rule.

This happens only with HBr but not with HCl and Hl.

This reaction is known as peroxide or Kharash effect or addition reaction anti to Markovnikov rule.

The mechanism of this reaction is as follows:

Answer 2

Answer:

Explanation:in this question the effect which is responsible for being product is inductive effect because end of carbon where br added is electron withdrawing gp. Attract electron towards itself makikng adjacent c more positive hence bromin of hbr added at that particular carbon