This textbook has been designed to meet the needs of B. Sc. First Semester students of Chemistry as per Common Minimum Syllabus prescribed for all Uttar Pradesh State Universities and Colleges under the recommended National Education Policy 2020. Maintaining the traditional approach to the subject, this textbook comprehensively covers two papers, namely, Fundamentals of Chemistry and Quantitative Analysis. Important theoretical topics such as molecular polarity & weak chemical forces, simple bonding theories of molecules, periodic properties of atoms, basics of organic chemistry, mechanism of organic reactions, stereochemistry and the mathematical concepts of chemistry are aptly discussed to give an overview of Fundamentals of Chemistry. Practical part covering Quantitative Analysis has been presented systematically to help students achieve solid conceptual understanding and learn experimental procedures.