HARD
9th CBSE
IMPORTANT
Earn 100
Draw a labelled diagram of the experimental set-up to study the latent heat of fusion of ice.
Important Questions on Model Test Paper (As per The Latest Marking Scheme)
MEDIUM
9th CBSE
IMPORTANT
Which organelle is the "power plant" of eukaryotic cell? Write in brief its functions.
MEDIUM
9th CBSE
IMPORTANT
Define gram molecular mass of a substance. How much is the gram molecular mass of oxygen?
MEDIUM
9th CBSE
IMPORTANT
If sulphur exists as molecules, then calculate the number of moles in of ?
EASY
9th CBSE
IMPORTANT
Define the terms 'frequency', 'wavelength' and 'velocity' of a sound wave. What is the relation between them?
MEDIUM
9th CBSE
IMPORTANT
What are isotopes. Explain by giving an example?
MEDIUM
9th CBSE
IMPORTANT
Give one similarity and one difference between a pair of isotopes?
HARD
9th CBSE
IMPORTANT
Give the numbers of protons, electrons and neutrons per atom in the two isotopes of and ?
EASY
9th CBSE
IMPORTANT
How much is the weight of an object on the moon as compared to its weight on the earth? Give reason for your answer.
