In a {\S}_{ {\N}} 2 substitution reaction of the type {\R}- {\Br}+ {\Cl}^{-} \stackrel{ {\DMF}{────▶}} {\R}- {\Cl}+ {\Br}^{-} Which one of the following has the highest relative rate?

{\CH}_3- {\C^{|↖{ \CH_3}}_{|↙{ \CH_3}}}- {\CH}_2 {\Br}

{\CH}_3- {\CH}_2- {\CH}_2 {\Br}

{\CH}_3- {\C_{|↙{ \CH_3}}H}- {\CH}_2 {\Br}

AIPMT 2008 Physics and Chemistry Paper

Question : 87 of 100

Marks: +1, -0

In a SN2 substitution reaction of the type R−Br+Cl−

DMF

────▶

R−Cl+Br− Which one of the following has the highest relative rate?

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