JEE Main 2021 Exam Analysis: Students Find BTech Paper 'Moderate To Easy' JEE Main 2021 Exam Analysis: Students who have appeared in the first shift of Joint Entrance Examination (JEE Mains 2021) for admission to BE, BTech programme found Mathematics and Chemistry moderately difficult, and Physics easiest amongst the three subjects. Education | Edited by Aarzoo Snigdha | Updated: Feb 24, 2021 2:24 pm IST RELATED NEWS Delhi: Students who have appeared in the first shift of Joint Entrance Examination (JEE Mains 2021) for admission to BE, BTech programme found Mathematics and Chemistry moderately difficult, and Physics easiest amongst the three subjects. The questions asked in the examination covered almost all chapters of Classes 11 and 12, however, weightage was given to Class 12 chapters in Maths and Chemistry, according to Ramesh Batlish, FIITJEE expert.