in NEET UG for part A can i leave some question if I don't know or I should attempt compulsorly?

Hello

Yes, you can of course leave the questions whose answers you don't or if you are not sure about the correct answer. There's no compulsion to attempt all the questions . It's just that in section A, one can attempt all the 35 questions , while for section B, there's internal choice i. e you have to attempt a maximum of only 10 questions out of the 15 questions.
In both section A and B, you should attempt only those questions whose answers you know, because for each wrong answer, your 1 mark will be deducted.

To help you further

Here's a brief a neet 2021 exam pattern

* Neet examination will be conducted for a total of 720 marks.

*Question will be from 4 subjects

-------) physics,

------)chemistry,

------)zooloy

------)botany

*There will be 50 questions ( 35 + 15 )in each subject . So, there will be a total of 200 questions ( 50 question x 4 = 200 questions).


------) Section A :-it contains35 mcqs

------) Section B :- it contains 15 mcqs out of which any 10 mcqsis to be attempted

So, in each subject you have to attempt only 45 questions.

*Total number of question to be attempted

= 45 mcqs per subject x 4 subject

= 180 questions can be attempted.

* Duration of examination is 3 hours.

Marking scheme:-

* 4 marks will be awarded to you for every correct answer

* there is negative marking of one mark for every wrong answer

*No mark is deducted for unanswered questions

For detailed information go through

https://medicine.careers360.com/articles/neet-exam-pattern/amp

Now that,

limited time is left for neet 2021 , so you should be focusing on your preparation,

>>>> practising chapterwise questions

>>>> then revising the chapters,

>>>> solve at least previous 10 year neet question papers as concept behind the question often gets repeated in the examination so it will be of great help in your preparation ,

>>>> Go through neet mock test papers as it will let you know your preparation level and and weak areas so that you can work on them and perform well in your examination.

To help you in cracking neet, we have neet crash for you, the link for the same is given below :-
https://learn.careers360.com/neet-crash-course-rank-booster/

Thank you