Hi

Bsc chemistry hons. in which college are you asking about ?

Anyway, speaking in general

Yes, with PCB you are eligible for BSC chemistry hons.

This is because,

Maths is not mandatory  for bsc chemistry hons.

For example,

To be eligible for Bsc chemistry hons. in Chandigarh University, Chandigarh, you need to pass 10+2 examination in Science Stream with

• Physics,

• Chemistry

• Mathematics  or Biology

with atleast a minimum of 50% marks from anny recognized board.

You can check the same on our page at:- https://www.careers360.com/university/chandigarh-university-chandigarh/bsc-chemistry-hons-course

Or on its official website at:-

https://www.cuchd.in/basic-sciences/bsc-chemistry.php

But yes,

In   many of the colleges, it's mandatory to have maths in 12th to be eligible for bsc chemistry   .

For example,

To be eligible for Bsc chemistry in DU, it's mandatory to have maths because to be eligible for bsc chemistry in DU .

You can check the same at:-

https://university.careers360.com/articles/du-bsc-eligibility-criteria

Similarly,

For Bsc chemistry hons in  Jamia Millia Islamia, New Delhi , maths is mandatory in 10+2. You can check it at :- https://www.careers360.com/university/jamia-millia-islamia-new-delhi/bsc-chemistry-hons-course

Thank you