hey rishu
first off all i can tell you bsc chemistry has more job opportunities than bsc physics,biology ,zoology,and i think even than maths depend upon the college. after bsc you will be able to give many staff selection exams but i will prepfer to go for msc from some iitS .also here are other answers
https://www.careers360.com/question-what-can-i-do-after-bsc-chemistry
best wishes
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile