Chemistry

You just need to clear 12th with minimum 50% and there is no such restrictions that you cannot take B.Com after physics, chemistry, maths and computers. Take the stream in which you feel comfortable. You can choose any of the colleges under Delhi University. After DU, you can think of below ones-
LPU
Amity
M. S. Ramaiah University of Applied Sciences - MSRUAS.

Hi,
The route to M.Sc Microbiology course is through entrance exam. The entrance tests for this course are IISc Entrance Exam, Goa University Microbiology Entrance Exam, Guru Nanak Dev University M.Sc Microbiology Entrance Exam, Osmania University Microbiology Entrance Exam and Lovely Professional University Microbiology Entrance Exam. Thanks.

Hi,
You can do \integrated M.Sc B.Ed (chemistry) from
CURAJ-Central University of Rajasthan, Ajmer.
Admission Process:
Entrance Test:
Eligible candidates need to appear for Central Universities Common Entrance Test (CUCET).
Thanks.

You can go through the reference books by Dr. Shafiqur Rahman.

You should refer to the books of Dr. Shafiqur Rahman.

Check out the link below :
https://www.shiksha.com/university/svu-sri-venkateswara-university/svucet-exam-question-papers.

B.Sc Chemistry is best.
In Environmental Science, if you want to do research then at B.Sc. Level you may choose Chemistry. Choosing Chemistry is helpful, as at B.Sc Level Environment and Green Chemistry is one of Subject in B.Sc Chemistry.

6.5 ILETS is not bad. You can easily get good colleges in Canada for Chemistry.