We take great pleasure in presenting the Chemistry Part-II book of “Reliable Series” Std. XII which is based on the newly reconstructed syllabus 2020-21. Reliable Publications, since 31 years, has been catering a large number of students using learner-friendly language and created it’s own marks among the students. The credit of initiating step-by-step method of learning goes to Team Reliable. The Chemistry book contains Questions and Answers divided mark-wise as per the latest pattern. The book provides students with appropriate point-wise answers which are easy to understand. It has MCQ’s, Memory Maps and ample questions, that will help students to achieve great numbers. At the end of every chapter, Test paper is provided for practice at the end of the book two Model Question Paper are included. We convey our gratitude towards Team Reliable for their constant support. We are sure that this book will guide every student towards achieving excellence in the examinations.