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Class 9 Chemistry notes

Written by Dr. Ayesha Nadeem (Chemistry)

Chapter notes with key points, definitions, short questions and model answers. Each chapter links to practice questions.

Chapter notes

Fundamentals of chemistry

What chemistry studies, elements, compounds and mixtures, atoms, molecules and ions, relative atomic mass, the mole and Avogadro's number, with worked numericals.

Class 9 Chemistry practice questions