MEDIUM
9th CBSE
IMPORTANT
Earn 100

Define valence electrons, valence shell and valency.

Important Questions on Atoms and Molecules

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 14
What is understood by the following statement? The valency of noble gas is zero.
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 15
Define molecular mass and relative molecular mass.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 16
Define mole.
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 17
Define gram-atomic mass and gram-molecular mass.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 18
Define molar mass. What is its unit?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 19
Define faraday.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 20
What is Buckminsterfullerene? How does it look like?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 21
What is meant by atomicity of a molecule?