Question
A solution of (–) –1 – chloro –1 – phenylethane is toluene racemises slowly in the presence of a small amount of SbCl5, due to the formation of
-
carbanion
-
Carbene
-
Carbocation
-
free radical
Solution
C.
Carbocation

Because of the planar structure of carbonation, both retention and inversion can take place.