S Chand Science For Ninth Class Part 2 Chemistry is a comprehensive Class 9 chemistry textbook by Lakhmir Singh & Manjit Kaur, published by S. Chand Publishing, designed to align with the NCERT/CBSE Class 9 science curriculum. It covers all core chemistry concepts in a clear and student-friendly manner with detailed explanations, colourful diagrams, examples, and a variety of solved and unsolved practice questions. The book’s content is structured to make learning fundamental chemical principles — such as atomic structure, chemical reactions, states of matter, acids & bases, metals and non-metals, and other key topics — easier and engaging for students preparing for school exams and board assessments.