Find CBSE Class 12 NCERT Book for the Chapter-6, General Principles and Processes of Isolation of Elements. NCERT Books are more than enough for you to cover the entire CBSE syllabus. You need to clarify your concepts that are given in the NCERT books.
Many times CBSE will ask twisted questions in the board papers. The students who simply mugged up NCERT books will think that the paper was out of these books. However, one needs to understand that by studying NCERT books, CBSE means that you should clarify your concepts and learn how to apply them.
Students are often confused as to what should be done in order to crack the CBSE board exams. By cracking the board exams, we mean; scoring more than 90% of the marks. What should the students do? Are NCERT books good enough for scoring this percentage in the board exams? While most of the students and even the CBSE schools recommend other side books, the fact is that, CBSE never does it. In fact, CBSE will always tell you to study NCERT books because most of the questions are from there only.
In NCERT books, you will have questions at the end of chapters. These can be one-liners, quizzes, match-the-following, descriptive or fill-in-the-blanks questions. So as to score well in the board papers, it is absolutely important that you practice variety of questions. By variety, you will get to know the twisted questions as well.