The correct statement(s) for the following addition reactions is(are)

The correct statement(s) for the following addition reactions is(are)

  1. O and P are identical molecules
  2. (M and O) and (N and P) are two pairs of enantiomers
  3. (M and O) and (N and P) are two pairs of diastereomers
  4. Bromination proceeds through trans-addition in both the reactions

Solution

(M) and (N) are identical meso compounds

(O) and (P) are enantiomers

Explanation of 4 options :

(i) (M) and (O) are distereomers of each other.

(N) and (P) are distereomers of each other.

(ii) Addition of Br2 on alkene follows non-classical carbocation mechanism. It is anti or trans addition.

(iii) (O) and (P) are enantiomers

(iv) (M) and (N) are identical and (O) and (P) are enantiomers.

(M and O) are distereomers and (N and P) are distereomers.

Asked in: JEE Advanced 2017 (Paper 1)

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