Which alkyl halide from the following pairs would you expect to react more rapidly by an S_N2 mechanism ? Explain your answer. (i) underset((A))(CH_3CH_2Br) " or " underset((B))underset(Br)underset(|)(CH_3CH_2CHCH_3) (ii) underset((C))underset(Br)underset(|)(CH_3CH_2CHCH_3) "or" underset((D))underset(CH_3)underset(|)(H_3C-C-Br) (iii) underset((E))underset(CH_(3))underset(|)(CH_3CHCH_2CH_2Br) "or" underset((F))underset(CH_3)underset(|)(CH_3CH_2CHCH_2Br)

Which alkyl halide from the following pairs would you expect to react

1.	Which alkyl halide from the following pairs would you expect to react more rapidly by an S_N2 mechanism ? Explain your answer. (i) underset((A))(CH_3CH_2Br) " or " underset((B))underset(Br)underset(\|)(CH_3CH_2CHCH_3) (ii) underset((C))underset(Br)underset(\|)(CH_3CH_2CHCH_3) "or" underset((D))underset(CH_3)underset(\|)(H_3C-C-Br) (iii) underset((E))underset(CH_(3))underset(\|)(CH_3CHCH_2CH_2Br) "or" underset((F))underset(CH_3)underset(\|)(CH_3CH_2CHCH_2Br)
Answer» SOLUTION :(i) A, (II) C and (III) E