Consider the reaction of propene with HBr as given below
The major product (P) and (Q) are related to each other as
Identical
Positional isomers
Chain isomers
Not isomers
HBr gives Markovnikov's addition product while HBr in presence of peroxide gives Anti Markovnikov's addition product
(P) and (Q) are positional isomers.
Hence, the correct answer is option (2).
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