Hii,

Yes, you can pursue a BCS (Bachelor of Computer Science) degree with a PCB (Physics, Chemistry, Biology) background, however the laws of your institution or university will determine this.

Some colleges may demand 12th grade math, while many do not.  So, if your college allows it, you can complete BCS without taking math.  It's best to check with the college you intend to attend.  If math is not required, you can still learn computer science topics during your BCS course.