Chemistry

Yes, you can. Forensic Science is the application of knowledge from pure science disciplines; essentially, any science that is applied towards aiding justice systems. You can look into specialising in Forensic Chemistry or Toxicology.

Career Opportunities after Higher studies in Chemistry:Analytical Chemist. Biomedical Chemist. Quality Controller. Safety Health and Environment Specialist. Teacher. Chemical engineering Associate. Industrial Research Scientist. Lab Chemist.

Diploma in Education (Special Education) and B.Ed (Special Education) recognised by the Rehabilitation Council of India (RCI) only will be taken into consideration. A person who is currently pursuing any of the education courses recognised by the NCTE or the RCI is eligible for appearing in CTET 2020.

NCERT Textbooks for PhysicsNCERT
Concepts of Physics Vol 1 and Vol 2HC Verma
Fundamentals of PhysicsHalliday & Resnick
Understanding Physics set of 5 booksDC Pandey.

Mathematics is not compulsory in class 12th to pursue B.Sc in Chemistry.

You can go for research in chemistry after completion. You can work with various private and government sectors as in chemical labs, chemical manufacturing, etc. after the completion of your study.

If you have 60 percent above in class 12th then it is best to take CSE department.

Every college has different course plan and according to which you have to study. You cannot change according to yourself. But physics and chemistry will be different from class12th .

https://www.shiksha.com/b-tech/bitsat-exam
here are the complete details about the BITSAT exam, you can check all the eligibility criteria for different courses.

For example, if the total marks of all 6 subjects you have secured is 300 and the total marks for which the examination conducted is 600, then your percentage will be 50% i.e. , (300/600)*100=50%, so, you need to calculate in the same way to get your percentage for 6 subjects of 12th standard.