Hi Laxmi,

If you are interested in teaching,designing and study chemistry then the best courses for you after 12th PCM will be:-

• B.Sc(Hons.) Chemistry
• M.Sc. Chemistry
• B.Arch.
• B.Des
• B.Sc. + B.Ed.
• M.Ed.
• B.Tech. Chemical Engineering

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!