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)
EASY
9th CBSE
IMPORTANT
Define diarrhoea. Give an account of occurence, symptoms, prevention and control of this ailment.
MEDIUM
9th CBSE
IMPORTANT
Which organelle is the "power plant" of eukaryotic cell? Write in brief its functions.
EASY
9th CBSE
IMPORTANT
Explain the direction of air movement during the day and night in coastal areas.
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?
