JEE main 2019 question paper pattern will be just like previous years will consist of three parts physics chemistry and mathematics each consisting of 30 questions total comprising of 90 questions each question carries + 4 marks for correct answer -1 marks for incorrect answer and 0 for unanswered questions.

Check more detail about the question paper at the link given below.

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