Question: Increasing order of reactivity of the following compounds for $\mathrm{S}_{\mathrm{N}} 1$ substitution is:
$(\mathrm{B})<(\mathrm{C})<$ (D) $<$ (A)
$(\mathrm{A})<(\mathrm{B})<(\mathrm{D})<(\mathrm{C})$
$(\mathrm{B})<(\mathrm{A})<(\mathrm{D})<(\mathrm{C})$
$(\mathrm{B})<(\mathrm{C})<(\mathrm{A})<$ (D)
Correct Option: , 3
Solution:
$\mathrm{S}_{\mathrm{N}} 1$ Reactivity order
