Hlw s Gopi,
Here are some of the best careers you can opt for after msc in chemistry...
. Laboratory assistant
. Materials technologists
. Production chemist
. Quality controller
. Research and development manager
. Safety and health environment specialist
.Teacher
Good luck.

Heyy 

You've a lot of options, here are few of them : 

• You can clear CSIR-NET Chemical Science exam(any either the NET or JRF(more preferred)) and upon qualifying the NET exam, you are eligible for a lectureship in any college(central or state) you would like to join.
• You can easily join a pharmaceutical industry or any chemical based industry like Amway, Hindustan Unilever, etc.
• Or go for posts like Analytical Chemist , Lab Chemist , Production Chemist , Biomedical Chemist etc.