68.When SN1 or SN2 reaction mechanism is possible? – InterviewSolution

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1.

68.When SN1 or SN2 reaction mechanism is possible?

Answer»

TheSN2reaction is concerted. That is, theSN2occurs in one step, and both the nucleophile and substrate are involved in the ratedeterminingstep.

Therefore the rate is dependent on both the concentration of substrate and that of the nucleophile.

TheSN1reaction proceeds stepwise

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