About author : THE AUTHOR AND COAUTHOR HAVE VAST EXPERIENCE OF TEACHING THOUSANDS OF STUDENTS IN SPAN OF 20 YEARS. AUTHOR DID M SC (CHEMISTRY) B. ED. CSIR NET (CHEMICAL SCIENCE) QUALIFIED. 2 YEARS RESEARCH EXPERINCE FROM BHU.Total 22 seminars attended, Total 11 national & International Research papers Chapters published in SIX books.Reviewer in three reputed journals. MEMBERSHIP IN U P HIGHER EDUCATION ACADEMIC SOCIETY,The Indian science congress Association Kolkata W.B.,Research society of chemical sciences Bhopal M. P.,Indian academician research association. HE IS AWARDED BY Best Young Faculty Award by Novel Research Academy Puducherry India, National Eminent Educator Award 2020 by I2OR , International Distinguished Educator Award 2020 by Green thinkerz. COAUTHOR DID PH D (CHEMISTRY) AND PUBLISHED 14 NATIONAL AND INTERNATIONAL RESEARCH PAPERS. HE IS AWARDED BY Best Young Faculty Award 2020 by Noval Research Academy Panduchery. • I2OR Young Aspirant Award 2020. • Green Thinker Z Award 2020. • Best Adviser Award 2018. • Best Teacher Award-2018. • Vigyan Margdarshak.

About book : We are living in modern era where changes are going on day by day and chemistry is no exception. The present book has been written strictly in accordance with latest ' university grant comission " syllabus. All the topics have been presented in a lucid language and understandable style in tune with the intellectual level of the students so that the learning becomes enjoyable. We sincerely hope this book will recieve due appreciation from the students and teachers. Any suggestion from the improvement of the book would be highly appreciated by the authors and publishers.