Hello there,

Understanding and solving different question papers is one of the best practice for the preparation. It gives you proper understanding of the exam pattern, important topics to cover and marking scheme.

Here is the link attached from the official website of Careers360 which will provide you with the question papers of class 12th biology.

https://school.careers360.com/boards/cbse/cbse-previous-year-question-papers-class-12-biology

thank you!