Problem- Secondary alkyl halides can undergo substitution by either SN1 or SN2 mechanism. The reaction conditions determine which pathway is followed explain each of the following-
SN1 is favored when the concntratin of nucleophile is low.
SN2 is favored when there is a strong nucleophile
SN1 is favored when there is a weak nucleophile (H20, ROH)
SN2 is favored in a polar aprotic solvent
SN1 is favored in a polar protic solvent
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