hello sir, i wanted to ask that with persuing B.Sc. in chemistry, what should i do to score in UPSC exams?

Hi Sachin, UPSC Examinations is a tuff nut to crack and needs lot of focus, hard work & perseverance. For preparation you can either join coaching or do self study, few of the important things to remember you need to do a lot of hard work (as there is no short cut to hard work), proper utilization

Start referring articles and material available online for UPSC, you definately will get help from it.