The main object is for students to learn by thinking and solving problems rather than by merely being told. Screening of problems on each topic is organized likewise, and their solutions are presented in such a manner so that the subject matter becomes clear, understandable and can be readily assimilated. The book covers a wide area including fundamental concepts leading the students to a solid understanding of the basics of organic chemistry. This book can be used in support of standard text as a review for taking professional examinations including Joint UGC-CSIR Eligibility Test, SLET, GATE, and also as a self-guide.