Chemistry

Yes, you can admission in M.Sc. You are eligible for the same.

Yes, you can admission in M.Sc for organic chemistry. You can apply for the admission.

Hi,
You need not to attend regular classes, if you are opting for distance learning program. You just need to attend the semester exams only, no need to attend regular classes. If you are going for regular classes, then attendance will be compulsory.

With this rank, there is very good chance to get this college.

Yes ,your rank is good enough to get a seat.
Good luck

Follow the given link you will be get updates about the latest cut-off
https://www.shiksha.com/university/jamia-hamdard-delhi-3082/admission

By this, you cannot get any government college. Please apply for state private engineering college.

Yes, you can get admission in engineering colleges like Amity University, Shardha University, Lovely Professional University, Galgotia University etc. Best of luck.

https://www.shiksha.com/science/colleges/m-sc-chemistry-colleges-Gujarat
Go to the link to get the list of college. Good luck.

B.Sc Hons in Mathematics consider best of 4 subjects for eligibility. You may or may not include chemistry in best of 4 depending on your marks in chemistry I. e if your best of 4 is higher by including chemistry then include otherwise exclude it. You can also pursue computer Science assuming you have studied Maths at 10+2.