Each section in JEE Main Question Paper, Physics, Chemistry and Mathematics, has an equal weightage of 33.33%. JEE Questions from Class 12th have a higher weightage in the exam as compared to Class 11th topics. 40% of the questions are from Class 11th NCERT chapters while 60% questions are asked from Class 12th NCERT Syllabus for JEE Main. This percentage might also change to 50:50 or even 60:40. Read the article to know JEE Main Chapter-wise Weightage for Physics, Chemistry and Mathematics and know the topics with the highest weightage in the exam.