there are many good courses after doing B.sc in chemistry. if you are interested in doing a post graduation, these are some of the options

• MSc in Chemistry,
• Msc in Biochemistry,
• Msc in Applied Chemistry,
• Msc in pharmaceutical chemistry,
• Post graduate diploma in analytical chemistry (PGDAC),
• Integrated MSc and Ph. D in chemistry,
• MSc in industrial/ analytical chemistry
• M.Sc. Physical & Materials Chemistry
• Masters in business Administration(MBA)
• You can do MCA if you are interested in programming after this you will get good job opportunities in companies.
• You can do B.Ed if you are interested in teaching.

hope this helps!