Here you can download resonance Chemistry booklet PDF for free. This PDF contains formulas to revise in free time. These formulas consisting from all chapters are extremely use full for JEE mains and Advanced. I strongly recommend you to make a spare time and revise these formulas.
I will upload some more formula booklets in future with lesser and filtered formulas. But for than you must revise these formulas or else you may not have continuity in chapter and forget basic formulas which are not covered in future uploads. I will also share some of my own mind maps of chemistry so that it may help you.