CH _3 –CH _2 –CH(Cl)–CH _3 obtained by chlorination of n-butane, will be : -

NEET 2001 Chemistry question

obtained by chlorination of n-butane, will be : -

(1)Meso form
(2)Racemic mixtureCorrect
(3)d-form
(4)-form

Answer: (2)

Solution

Free-radical chlorination of n-butane at C-2 gives a planar () secondary radical. The chlorine atom (or ) can attack this planar radical with equal probability from either face, giving the two enantiomers of 2-chlorobutane in equal amounts. The product has one

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Question ID VK-088786