Statement 1: NBS is a specific reagent for allylic bromination. Statement 2: Allylic bromination occurs through free radical intermediates.

Question

Statement 1: NBS is a specific reagent for allylic bromination. Statement 2: Allylic bromination occurs through free radical intermediates. (A) If both Statement 1 and Statement 2 are true and the statement 2 is the correct explanation o f the statement 1. (B) If both Statement 1 and Statement 2 are true but statement 2 is not the correct explanation of the statement 1. (C) If Statement 1 is true but Statement 2 is false. (D) If Statement 1 is false but Statement 2 is true.

Tardigrade Admin · Accepted Answer

Correct Explanation: NBS gives a constant low concentration of Br2 thereby favouring substitution and preventing addition reaction.

Q. Statement 1: NBS is a specific reagent for allylic bromination.
Statement 2: Allylic bromination occurs through free radical intermediates.

If both Statement 1 and Statement 2 are true and the statement 2 is the correct explanation o f the statement 1.

If both Statement 1 and Statement 2 are true but statement 2 is not the correct explanation of the statement 1.

If Statement 1 is true but Statement 2 is false.

If Statement 1 is false but Statement 2 is true.

Correct Explanation: NBS gives a constant low concentration of $B r_{2}$ thereby favouring substitution and preventing addition reaction.

Q. Statement 1: NBS is a specific reagent for allylic bromination. Statement 2: Allylic bromination occurs through free radical intermediates.