The incorrect statement regarding chirality is :
The product obtained by reaction of haloalkane having chirality at the reactive site shows inversion of configuration.
Enantiomers are superimposable mirror images on each other.
A racemic mixture shows zero optical rotation.
reaction yields
mixture of both enantiomers.
Enantiomers are non-superimposable mirror images on each other
Statement (2) is incorrect
Hence the correct option is 2.