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In a S(N)2 substitution reaction of the ...

In a `S_(N)2` substitution reaction of the type
`R-Br+Cl^(-) overset("DMF")toR-Cl+Br^(+)`
which one of the following has the highest relative rate?

A

`CH_(3)-overset(CH_(3))overset("| ")underset(CH_(3))underset("| ")("C ")-CH_(2)Br`

B

`CH_(3)CH_(2)Br`

C

`CH_(3)CH_(2)CH_(2)Br`

D

`CH_(3)-underset(CH_(3))underset("| ")("C ")HCH_(2)Br`

Text Solution

Verified by Experts

The correct Answer is:
B
Rate of `S_(N^(2))` reactions are influenced by steraric hindrance, therefore it reacts at the fastest rate.
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