Hello candidate,

While you are preparing for the class 12th board examination you must keep some basic things in mind- such as remembering all the formulas and knowing the basics right of each and individual chapters.

For physics you can refer to book such as SL Arora, for Chemistry you can refer to books such as Pearson publication, as these contains a variety of questions and examples based on the type of problems asked in the board examination.

Hope it helps!!