Dear aspirant !

Hope you are doing great ! Chemistry is a very scoring subject in any competitive exams especially in jee and neet . Firstly don't run behind finsihing the syllabus ,be clear with every concept , don't create any backlog and for organic chemistry ,make sure that you know class 11th basic for class 12th, chemistry is that subject in which every topic is related to previous one ,so be careful. For physical chemistry , solve numerical problem as many as you can , and for environmental chemistry ,polymer , biomolecules etc make short notes in your language that will be very helpful .

Hope you find it useful !

Thank you