JEE Advanced

As there will be two JEE Mains exams this year, so after first exam only the percentile has been released right now. However, after the second exam that took place, everyone will know their ranks on the official website only. Thereafter, the marks needed to qualify will be disclosed after the second exam result that took place in this April.

Yes, you will qualify for JEE-Advance. Your expected rank is about 166666 and around 2.2 lacs candidates will qualify for JEE-Advance. Therefore, your chances are very high.

No problem, attempt the exam now.

If you are confident enough that you can study for one year without any diversion. Then yes you can. I am a dropper and I was self motivated to crack JEE with a very good score. And yes I did it. Everyone is capable of doing it, just don't lose hope and work hard for a year. The amount of effort should be much more than you put in 12th.
All the best.

You should improve your score in order to get eligible for JEE advance if you are a general category student.

JEE Advanced is specifically conducted by the IITs to admit students.

Sorry to say but its a no as IIT strictly says at least 75% in all subject mean above 75% or 75% not less than it and as you said you are from CBSE, then you won't came in top 20 percentile because top 20 percentile of CBSE is above 85%. So, you try in any other college.
All the best.

In mathematics, it is calculas part and matrix and in physics for Mains work energy power, electrostatics, current electricity, for advance it is rotational motion magnetic effect of current thermodynamics in chemistry electro-chemistry and solid state and organic chemistry.

Yes, if you score a decent grade in JEE

Hi,
JEE Mains Score is the dominating factor in the JEE Advanced eligibility criteria, if you could not clear Mains cut off, and then you are not eligible for the exam. If you have applied for JEE Mains for April, you can secure better cut off. Best of luck.