Important Questions for Class 9 Science Chapter 3 - Atoms and Molecules

The Chapter 3 – Atoms and Molecules important questions are prepared by professional subject experts. These CBSE Class 9 Science Chapter 3 important questions help students in learning the essential concepts of the chapter. We at BYJU’S provide these important questions so that students don’t need to put extra effort in noting down important concepts. Solving these important questions of Class 9 Science Chapter 3 – Atoms and Molecules will get students an idea about the types of questions they can expect in their Class 9 Science exam.

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Important Questions for Class 9 Science Chapter 3 – Atoms and Molecules PDF

CBSE Class 9 Science Chapter 3 Extra Questions

1. What is the compound Al₂(SO₄), and give the ions present in it.

2. What is ‘atomic mass unit’? How is it linked with relative atomic mass?

        3. What is Avogadro’s number? Why is it also known as Avogadro’s constant ?

       4.  Which are the six postulates of Dalton’s atomic theory?