A compound exhibits optical activity if it contains a chiral carbon atom, which is an asymmetric carbon atom bonded to four different atoms or groups. For a compound to be optically active it must have non-superimposable mirror images and cannot contain any symmetry elements like a plane of symmetry, center of symmetry, or axis of symmetry. Optical activity is demonstrated by a compound's ability to rotate the plane of polarized light as it passes through.

1. Conditions for optical
activity
PHARMACEUTICAL ORGAN
PRE
D. D

2. Optically active compounds
The ability of a optically active substance
to cause rotation When it is passed through
a plane polarised light is called is called
optically activity

3. Conditions
1. The compound must have an asymmetric
Carbon Or a chiral carbon
2. Chiral carbon is a carbon surrounded by four
different atoms or group

4.  2. The compound Must have non superimposable
mirror images

5. 3. It should not Contain any type of elements of
symmetry
Elements of symmetry
1. Plane of symmetry
2. Centre of symmetry
3.axis of symmetry