Hello there!
Solving question papers is one of the best method of preparation. It gives you proper idea about the exam pattern and important topics to cover.
Here is the link attached from the official website of Careers360 which will provide you with the question papers of all subjects of class 12th.
https://school.careers360.com/boards/cbse/cbse-previous-year-question-papers-class-12
thank you!
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