Isomerism

1. Chiral Carbon (Chiral Center)

o A carbon atom with 4 different atoms or group of atoms directly
bonded

01 Multiple Choice

1.1. Optical Isomerism

A compound will exhibit optical isomerism if it
(i) has a chiral carbon atom
(ii) has no plane of symmetry
(iii) has a non-superimposable mirror image

1.2. Polarisation of light

o In an ordinary beam of light, vibrations are taking place in all directions at right-angles to the direction of the beam.
o If such a beam of light is passed through a polarizer, the emergent light vibrates in a single plane and is said to be plane-polarised.