Grb advance problems in Organic Chemistry for JEE Main & Advanced - Exam a I nation 2021-22 - GRB advanced problems in Organic Chemistry for JEE - examination 2020-21.As an experienced teacher, I understand their feelings and therefore the numerous illustrative problems are set up systematically with carefully detailed solution, explained in a step by-step fashion. Attempts have been made to introduce problems with a view that conceptual material should illuminate factual aspects and not eliminate. The level of problems has gradually increased avoiding jumps and accumulation of similar problems.