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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3o2053

Propene reacts with $Br X_{2}$ in water. Select the correct statements.

AThe major product is 1-bromopropan-2-ol
BWater opens the bromonium ion at the more substituted carbon
CThe major product is 2-bromopropan-1-ol
DA discrete free secondary carbocation $CH X_{3} - CH X^{+} - CH X_{2} Br$ is the intermediate

Answer: A, B

The bromonium ion is opened by water at the carbon with greater positive character, the secondary C-2, giving

BrCH X_{2} - CH (OH) - CH X_{3}

(1-bromopropan-2-ol). The reaction goes through a bridged bromonium ion, not a free cation, and 2-bromopropan-1-ol is not the major product.

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