Organic Chemistry alone makes up for about 28% of the paper. Therefore, it is of utmost importance that you strengthen your concepts pertaining to organic chemistry. In order to attain a competitive score, you cannot be allowed to leave Organic Chemistry. It is advisable that you strengthen your concepts and revise them regularly. Understand the concepts presented to you rather than cramming the whole thing, only to forget and get confused on the exam day. Here, solving sample papers can help you get a notable idea as to what concepts of organic chemistry are important and what weightage they carry.