Hey.

You will have varioua course options after pursuing BSc Chemistry Honours. One of the most common routes can be to pursue Msc Chemistry. Or you can also choose Msc course with specialisation in Physical, Organic, Biochemical, drug etc. You can also go for PHD further if you want to enter the teaching line. MBA is also one of the good options after BSc.  You can also purse  any post graduate diploma courses or certification courses after BSc Chemistry hons. Other than that you can also prepare for UPSC exams to become IAS, IFS, IPS officer.