Hi

Both the books Oswal and exam idea are good.

Oswal is good because it includes the following points.

1) It includes both the sample papers and question bank for the exam.

2) It includes points with the revised syllabus of CBSE and with covering all the topics related to the subject.

3) It also includes the previous year board question papers and question.

Exam idea is also good and maximum number of students prefer that book too. Exam idea has many types of questions easy, hard, short, long, etc.

I hope your question has been answered properly.

All the best for your future!

Hello dear student !

There are many question banks in market which you can prefer for your class 12th boards for all subjects . Talking about Oswal or Exam idea , both the books are good and you can prefer any as per your convience. Exam Idea is really nice and preferable by the students. But let me tell you one more book which is very helpful for boards examinations. This is "Arihant's Previous years's question papers" . You can buy this book for all the main subjects such as physics and Chemistry and trust me you will find it the most helpful book. Just practice the whole book, and you'll be able to secure very good marks in your boards.

Hope this will help you

All the best !