EASY
9th CBSE
IMPORTANT
Earn 100

What is the numerical value of Avogadro's number?

Important Questions on Atoms and Molecules

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 8
What is the name given to the number  6.022×1023 ?
EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 9
What is meant by 'a mole of carbon atoms' ?
MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 1
What is the difference between atomic mass and gram atomic mass?
MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 2

What is the difference between the actual mass of a molecule and gram molecular mass?

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

Define mole in terms of mass.

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 4
Define mole in terms of number.
MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 5
Define mole of an ionic compound. Explain with an example.
MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 6
What is the unit of atomic mass or molecular mass? What is the mass of this unit in kilograms?