Teacher

In my opinion, you should pursue with UG, PG and P.hD or should qualify NET to become a teacher. In this sense, you should take admission in B.Com right after 12th in a reputed university.

Hi,
You may go either MCA or M.Sc IT.

Yes, you can apply for NET in chemical sciences, eligibility criteria for NET is 55% marks in Masters for open and 50% marks for SC/ST candidates.
You cannot appear for TET as for TET, B.Ed is must.

Dear Akanksha Pandey,
Yes, you lay your focus on IIT-JEE. It is too good to start in class 11th. It is proud to see such a woman with a future vision.

Hello Prerana,
It's very heartening to see girl from 10th having dreams in eyes. Gr8 indeed. It's actually very simple. You need to pass 12th with good marks to enable admission in good college in BA English. Then you do MA, then NET then get job and register for PhD.
Best wishes

Yes, of course. Many universities recruit people with such professional profile. The prestigious ones may ask for a PhD too but most of them would ask for Masters. You can even apply to universities mentioning that you're in your PhD course. They also refer such candidates. All the best.