Salient Features of the book are: Problems Asked in CBSE Examinations (PACE) during the past 10 years, questions pertaining to NCERT and Exemplar—exercises as well as solved examples—clearly marked for easy identification. An index with page numbers of PACE is also included at the end of the book. A large number of solved examples and practice questions for each topic True or False questions in each exercise Fill in the blanks made part of each exercise Multiple Choice Questions, Assertion-Reason Questions and Statement-based Questions at chapter-end Case-Study based Questions included in each chapter