Consider the reactions:
(i) (CH3)2CHCH2−BrC2H5OH−−−−−→(CH3)2CHCH2−OC2H5+HBr
(ii) (CH3)2CHCH2−BrC2H5O−−−−−−→(CH3)2CHCH2−OC2H5+Br−
The mechanisms of reactions (i) and (ii) are respectively
A
SN1andSN1
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B
SN2andSN1
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C
SN2andSN2
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D
SN1andSN2
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Solution
The correct option is CSN2andSN2 If reaction is SN1, there will be the formation of carbocation and the rearrangement takes place. In these reactions there is no rearrangement hence both are SN2 mechanism.