Question -
Consider the following reactions carried out at the same temperature: CH3Br+OH−C2H5OH−−−−−→CH3OH+Br− CH3Br+OH−(CH3)2SO−−−−−−→CH3OH+Br− 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 SN2 reaction.
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