Dear Student ,

No, it will no create any severe problem regarding any Govt job not related to chemistry..

Generally , Graduation based Govt job in non-tech/clerical field like SSC-CGL, NTPC or  other exam doesn't care about the subjects you have taken in graduation but only accepts your graduation degree.

On the other hand, as you have said that you have taken Comp sc as an optional subject , so it may help you to do any types of work related to computer as now a days mathematics also required some computer skills as an advanced level.

You can also pursue higher studies in Mathematics and become a lecturer of mathematics or can be a Mathematician.

Hope this helps !