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JEE Main levelSingle correct optionDifficulty 2 of 3o2028

Propene reacts with $HOCl$ (chlorine water). The major product is

A1,2-dichloropropane
B1-chloropropan-2-ol
C2-chloropropan-1-ol
Dpropane-1,2-diol

Answer: B

The electrophile is

Cl X^{+}

(from HOCl), which adds to the terminal carbon through a chloronium ion. Water (OH) then attacks the more substituted carbon. The product is

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

.

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