DESCRIPTION Laboratory Manual CBSE always believe in Global Trends of Educational Transformation. The CBSE curriculum gets its lead from National Curriculum Framework 2005 and Right to Free and Compulsory Education Act 2009. As said by John Holt We learn to do something by doing it. Laboratory work has special importance in the learning of science as scientific principles develop and grow on the basis of Laboratory work. Lab Manuals for Classes XI & XII has been written so as to supplement the need of the students to prepare for lab work and improve practical skills among students. This Lab Manual includes all activities and experiments as specified in latest CBSE curriculum. Each activity/experiment comprises of theoretical concepts which provides brief description about activities. At the end of every activity Viva Voce questions have been given for extra practice. Projects have been added to facilitate collective efforts and extension of learning to real life. This book is strictly according to the latest CBSE guidelines, and contains more than sufficient viva voce questions and brief description of each activity/experiment, which help students in practicing and completing the lab work. All activities and experiments are always checked twice. Practically, this book provides students everything they need to learn during their lab work. Since we believe in continuous improvement, hence this book has been written with accuracy as well as updated as per CBSE guidelines and reviewed at different tiers by panel of experts. We are sure that this book will serve as a perfect teaching guide for the teachers and good lab manual for the students. It is expected that they will take full advantage of our knowledge and experience.