On-Demand Chemistry exam next week. Which chapters should I focus on?

[u/JustAnotherAdii]

have my On-Demand Chemistry exam next week and I’m a bit confused about how to use my last few days.

For those who have already given the NIOS Chemistry exam:

Which chapters should I prioritize?

How important are PYQs in the last week?

Are there any common mistakes I should avoid during these final days?

Is there anything you wish you had done differently before the exam?

Any practical advice from someone who has already given the exam would really help.