Advance problems in Organic Chemistry for JEE Main & Advanced & All Other Medical entrance Examination. The original purpose of the text is to guide students in the basic concepts of physical Chemistry so that they become familiar with conceptual aspects and can read, understand, study and enjoy the subject to develop the best strategy for solving problems. Many students find difficulty in computational problems. 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.