The thoroughly revised and updated 7th Edition of Disha's Bestseller 144 JEE Main Chemistry Online & Offline Chapter-wise & Topic-wise Previous Year Solved Papers provides the last 22 years ONLINE (2012 - 2023) & OFFLINE (2002 - 2018) papers. • The book contains a total of 144 papers - 18 papers of JEE Main/ AIEEE from the year 2002 - 2018 held OFFLINE including the AIEEE 2011 Rescheduled paper and 126 JEE Main papers held ONLINE from 2012-2023. • The book includes all the 24 papers held in 2023 - 12 of Session I (held in January & February 2023) & 12 papers of Session II (held in April 2023). • The 144 papers are distributed into 31 Chapters exactly following the chapter sequence of the NCERT books of class 11 and 12. • The questions in each Chapter are further divided into 2-4 topics. The Questions are immediately followed by their detailed solutions. • The book constitutes of 3940+ MCQs & 830 Numeric Value Questions (NVQs) with Solutions. • Some same or similar (data change) questions have been marked in the book and have been provided once so as to avoid repetitiveness.