In the following pairs of halogen compounds, which would undergo `S_(N)2` reaction faster?

In the following pairs of halogen compounds, which would undergo S_N2 reaction faster?

In the following pair of halogen compounds which would undergo S_(N^2) reaction faster?

In the following pairs of halogen compounds, which compound undergoes S_(N)2 reaction faster?

In the following of halogen compounds , which would undergo S_(N) 2 reaction faster ?

In the following pairs of the halogen compounds, which would undergo S_N 2 faster ? CH_3 CH_2 Br and CH_3 -underset (Br) underset (|) overset (CH_3) overset (|) C- CH_3

In the following pairs of halogen compounds, which compound undergoes faster S_(N)1 reaction?

In the following pairs of halogen compounds, which compound undergoes faster S_(N)1 reaction?

In the following pairs of halogen compounds, which compound undergoes faster S_(N)1 reaction?