Question:
The mechanism of $S_{N} 1$ reaction is given as :
A student writes general characteristics based on the given mechanism as :
(a) The reaction is favoured by weak nucleophiles.
(b) $R^{\oplus}$ would be easily formed if the substituents are bulky.
(c) The reaction is accompanied by racemization.
(d) The reaction is favoured by non-polar solvents. Which observations are correct?
Correct Option: , 3
Solution:
Above reaction is $S_{N} 1$ reaction as it proceeds via formation of carbocation. Polar protic solvent is more suitable for $S_{N} 1$ and so racemisation takes place.