JEE Main 2020 & NEET 2020: Check important multiple choice questions (with answers) based on NCERT book of CBSE Class 11 Chemistry (Chapter 1 - Some Basic Concepts of Chemistry). These questions are ...
General Introduction: Importance and scope of Chemistry. Nature of matter, laws of chemical combination, Dalton's atomic theory: concept of elements, atoms and molecules. Atomic and molecular masses, ...
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