Question

Assertion (A): Addition of HBr to propene in presence of benzoyl peroxide produces 1-bromopropane as the major product. Reason(R): Addition of HBr to propene in the presence of peroxide follows free radical chain mechanism.

Give the structure and name of the alkene (C4H8) which adds on HBr in the presence and in the absence of peroxide to give the same product C4H9Br.