Question

Chiral molecules are those which are
a) Shows geometrical isomerism
b) Superimposable on their mirror images
c) Not superimposable on their mirror imagen
d) Unstable molecules​

Answer 1

In chemistry, a molecule or ion is called chiral (/kaɪˈræl/) if it cannot be superposed on its mirror image by any combination of rotations and translations.

Answer 2

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Compounds which are non-superimposable on their mirror images are optically active. These molecules are called chiral molecule. All four valencies of chiral carbon are satisfied by different atoms or group of atoms.