A solution of (-) - 1 - chloro - 1 - phenylethane in toluene racemises slowly in the presence of a small amount of SbCl5, due to the formation of :
carbene
carbocation
free radical
carbanion
Planar structure
Solution of (+) -2-chloro -2- phenylethane in toluene racemises slowly in the presence of small amount of SbCl5, due to the formation of