Question

which alkyl halide follows only sn2 hydrolysis mechanism

Answer 1

The primary alkyl halides follows only SN2 mechanism.
Eg - ethyl chloride.
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Answer 2

Hey folk...

→Generally,  primary alkyl halide undergo SN2 hrdrolysis mechanism because

∅ 1° substrates have little steric hindrance to nucleophilic attack and

∅ 1° carbocations are relatively unstable

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