Hello,
NEET UG 2019 exam will be conducted in Offline mode. There will be total number of 180 questions from Physics, Chemistry and Biology.
45 Questions from Physics, 45 questions from Chemistry and 90 questions of Biology.
Also, you can go through the link below to check chapter wise weightage and important topics-

 https://medicine.careers360.com/articles/neet-chapter-wise-weightage-and-important-topics

Good Luck!

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