EASY
9th CBSE
IMPORTANT
Earn 100

Name the scientist who gave the atomic theory of matter. (John Dalton/ Ernest Rutherford)

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Important Questions on Atoms and Molecules

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 6

Which postulate of Dalton's atomic theory can explain the law of conservation of mass?

MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 7

Which postulate of Dalton's atomic theory can explain the law of constant proportion?

MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 8

Give one major drawback of Dalton's atomic theory of matter.

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 9
What are the building blocks of matter?
EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 10

Define 'atom'.

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 11

What is the order of size of atoms?

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 12

How is the size of an atom indicated?

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 14
Name the unit in which the radius of an atom is usually expressed.