1) For the following compounds, the correct statement(s) with respect to nucleophilic substitution reaction is(are) A) Compound IV undergoes inversion of configuration B) The order of reactivity for I, III, and IV is :IV >I >III C) I and III follow $S_{N}1$ mechanism D) I and II follow $S_{N}1$ mechanism Answer: Option C,DExplanation:(a) Both I and II are 10 halides, undergoes SN 2 reaction. (b) III is a tertiary halide, undergoes SN 2 reaction. I is benzylic bromide, it is very reactive in SN 1 also as if produces stable benzylic carbonation.
