Hello,

Both are online platform for study basis. Unacademy good for physics and chemistry. But most of the students are want to clear NEET examination they will join the unacademy platform. But physics wallah is good also for physics.

Actually you can practice your own at your home. When you are completed one chapter you can give any mock test for see what's your outcome. It will be very helpful. Also you can practice when your revisions are completed and you want to give full syllabus mock test. And whenever you will give the test must watch the time. Because you can notice that giving only one question how much time you need.

I'll provide you a link below you can check it for this MCQ mock test in JEE Mains examination

https://learn.careers360.com/test-series-jee-main-free-mock-test/

All the best.