Consider the following reactions carried out at the same temperature: C H 3 B r + O H − C 2 H 5 O H − −−−− → C H 3 O H + B r − C H 3 B r + O H − ( C H 3 ) 2 S O − −−−−− → C H 3 O H + B r − Which of the following statements is correct about these reactions? Options: A . &nbsp The first reaction occurs faster than the second B . &nbsp The second reaction occurs faster than the first C . &nbsp Both the reactions occurs at the same rate D . &nbsp Addition of NaI has no effect no either of these reactions

Consider the following reactions carried out at the same temperature: CH3Br+OH

Discussion Forum : Reaction Mechanism

Question -

Consider the following reactions carried out at the same temperature: $C H_{3} B r + O H^{-} C_{2} H_{5} O H - ---- \to C H_{3} O H + B r^{-}$
$C H_{3} B r + O H^{-} (C H_{3})_{2} S O - ----- \to C H_{3} O H + B r^{-}$
Which of the following statements is correct about these reactions?

Options:

A . The first reaction occurs faster than the second

B . The second reaction occurs faster than the first

C . Both the reactions occurs at the same rate

D . Addition of NaI has no effect no either of these reactions

Answer: Option B
:
B

Polar aprotic solvents such as DMSO increase the rate of the $S_{N} 2$ reaction.

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Discussion Forum : Reaction Mechanism

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