Hello

B.sc- bachelor of science is an undergraduate course for 3 years, divided into six semesters, Various course types in Bachelor of Science, and one of them is B.sc CBZ- Chemistry, Biology and zoology, This course educates the students about the basics of chemistry, Botany and zoology combined.

And no, it's not mandatory to appear for CET exam to secure Admission in B.sc CBZ, It's depends upon each colleges have different procedures for this program, Many give Admission on the basis of the merit of class 12, some proffesional B.sc.