???? The thoroughly Revised & Updated 20th edition of the book “Errorless 47 Previous Years Chapter-wise & Topic-wise IIT JEE Advanced (1978 - 2024) + JEE Main (2013 - 2024) CHEMISTRY Solved Papers” is an integrated book, which contains Chapterwise & Topicwise collection of previous JEE Advanced (including 1978 - 2012 IIT-JEE & 2013 - 24 JEE Advanced) & past JEE Main 2013 to 2020 (Offline Papers) and 2013 – 2024 (all 146 Online Papers). ???? Thus the Book covers 47 IIT JEE/ JEE Advanced Papers 1 & 2 and 154 JEE Main Papers (146 Online + 8 Offline). The JEE Main questions included are the ones based on the new syllabus NTA adaopted in 2024. ???? The Book is divided into 31 chapters as per NCERT Book. With this new feature this book has become the 1st to adopt NCERT chapterisation. ???? Each chapter divides the questions into 2-4 topics which are further divided into 10 categories of questions - Fill in the Blanks, True/ False, MCQ 1 correct, MCQ more than 1 correct, Passage Based, Assertion-Reason, Multiple Matching, Integer Answer, Numeric Answer and Subjective Questions. ???? All the Screening and Mains papers of IIT-JEE have been incorporated in the book. ???? Detailed solution of each and every question has been provided for 100% conceptual clarity of the student. Well elaborated detailed solutions with user friendly language are provided at the end of each chapter. ???? Solutions have been given with enough diagrams, proper reasoning to bring conceptual clarity. ???? The students are advised to attempt questions of a topic immediately after they complete a topic in their class/ school/ home. The book contains around 5100+ Milestone Problems in CHEMISTRY.