which bsc hons. is best for pcb student

It depends on your interest. If you are interested in biology then hons. in biology is great option for you.

You have to see that actually everything depends on ones interest. If you choose the branch in which you are not interested in then someday you will leave it.

That's why choose the branch of your interest. Don't take tension about career. Each subject has its power and pride. You can get job in colleges and institutes with all three subjects equally.

Go with your interest.

Best of luck

Depends on which subject intrigues you more. It may also depend on ehich subject you want to explore more. All the three courses namely BSc in physics, chemistry or biology can be very fruitful but only for those who have keen interest in exploring the subject. There are students who like physics and its intricacies and there are others who like chemistry and its application while there are also Students who want to know about anatomy and basic human structure. These all will lead to a different path. Choose your subject as per that and then opt for the course.

Hope this helps.