Which would undergo S_N 2 reaction faster in the following ...

CBSE Class 12 Chemistry 2015 Solved Paper

Question : 5 of 26

Marks: +1, -0

Which would undergo

S_N 2

reaction faster in the following pair and why?

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

and

{\CH}_3-\C↖{|}↖{{\CH}_3}↙{|}↙{{\CH}_3}-{\CH}_3

Solution:

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

Because it is a primary halide

(1^{∘})

halide

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