Hello Vanee !!
So..generally these assertion and reason type of question gives you a clear idea on a concept .You better to prepare this kind of questions too.This type of questions were also asked sometimes in NEET,just go through the previous papers of NEET and do practice on that pattern ,Mostly no such type of questions  will be asked in  NEET 2020.I can provide you the link for previous years question papers with solution and also the sample papers to prepare ,have  a look :

https://medicine.careers360.com/articles/neet-question-paper

https://medicine.careers360.com/articles/neet-sample-paper

Hope that helped.Good luck !!

No. The NEET 2020 pattern is as same as the old one with 180 MCQs. 45 MCQs from Physics, 45 MCQs from Chemistry and 90 MCQs from Biology. Every correct answer gets you 4 marks and a wrong answer takes away 1 mark. Unanswered question has no impact. The exam will be conducted in a pen and paper mode. For more information, please visit the information bulletin at: https://ntaneet.nic.in/Ntaneet/ShowPdf.aspx?Type=50C9E8D5FC98727B4BBC93CF5D64A68DB647F04F&ID=AC3478D69A3C81FA62E60F5C3696165A4E5E6AC4 page no#13.