hi,

the basic eligibility criteria to appear in jee main exam is candidates must complete 12th exam in science stream from a recognized education board.  Candidates should have studied Physics, Chemistry and Mathematics as compulsory subjects in their 10+2 / qualifying examination.

jee main paper 1 questions would be based on 12th syllabus of physics, chemistry, mathematics. to admission in iits you must have studied pcm and any other subject as optional like  statistics/ biology,/ biotechnology etc is necessary.

since you did not studied chemistry you would not eligible to appear in jee main exam.

hope you understand.

Hello aspirant,

JEE main exam is a standardized computer based test for admissions to various technological institutions for various undergraduate programs. The exam tests the candidate on three subjects math, physics and chemistry.

you can check the revised paper pattern for the year 2021 here

https://engineering.careers360.com/articles/jee-main-exam-pattern

hope this helped

thank you