Hello Anmol!

Usually same questions are not repeated in competitive exams. However, in NEET there are chances some questions might be repeated. But it cannot be said according to chapter wise. Rather it would be better to study according to the weightage given to each chapter so that time can be adjusted to practice as per it.

Here is the article that clearly mentions the chapter wise weightage in each subject:

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