Question

Which one of the following compounds is more reactive towards SN2 reaction and why? ch3ch (CL) ch2 CH3 Or CH3 ch2 ch2 CL

Answer 1

Hyy!!

Answer:

CH3 ch2 ch2 CL

Explanation:

CH3 ch2 ch2 CL is more reactive than ch3ch (CL) ch2 CH3 in SN2 becoz primary(1°) halide nucleophilic attack is easier nd can undergo sn2 mechanism faster than secondary(2°) or tertiary(3°) halide.

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Answer 2

$CH_3CH_2CH_2Cl$ is more reactive towards SN2 reaction.

• In SN2 reaction the incoming nucleophile attack from the backside of the leaving group and gives a 100% inversion product.
• In SN2 reaction the reactivity of alkyl halides follows the below order-
• 1°>2°>3°.
• Thus $CH_3CH_2CH_2Cl$ is a 1° alkyl halide and undergoes a faster SN2 reaction and is more reactive than $CH_3CH(Cl)CH_2CH_3$ which is a 2° alkyl halide.