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Solution


Q.

The incorrect statement regarding chirality is             [2022]
1 SN1 reaction yields 1 : 1 mixture of both enantiomers  
2 the product obtained by SN2 reaction of haloalkane having chirality at the reactive site shows inversion of configuration  
3 enantiomers are superimposable mirror images of each other  
4 a racemic mixture shows zero optical rotation  

Ans.

(3)

Enantiomers are non-superimposable mirror images of each other. Enantiomers possess identical physical properties namely, melting point, boiling point, refractive index, etc. They only differ with respect to the rotation of plane polarised light. If one of the enantiomer is dextrorotatory, then other will be laevorotatory.