Q. $ {{S}_{N}}1 $ reaction is feasible in
Rajasthan PETRajasthan PET 2012
Solution:
$ {{S}_{N}}1 $ unimolecular nucleophilic substitution reaction is favoured with the stability of carbocation. [a]
$ 3{}^\circ $ carbocation [b]
$ 1{}^\circ $ carbocation [c]
Arylic carbocation [d]
(Unstable $ 1{}^\circ $ carbocation) Thus, reaction [a] is feasible.
