MEDIUM
9th CBSE
IMPORTANT
Earn 100

Give five differences between compounds and mixtures.

Important Questions on Is Matter Around Us Pure?

HARD
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>Revision Exercise>Q 13

Classify the following into element, compound and mixture:

(I) coal (ii) methane (iii) copper (iv) carbon dioxide (v) steam (vi) honey (vii) granite (viii) blood (ix) sugar (x) germanium

HARD
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>Revision Exercise>Q 14
Define the terms; solution, suspension and colloid. Make a comparison of size of their particles.
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>Revision Exercise>Q 15
Write the steps you would use for making tea. Use the words: Solution, solvent, solute, dissolve, soluble, insoluble, filtration and residue.
EASY
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>Revision Exercise>Q 16
Explain saturated solution giving examples.
EASY
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>Revision Exercise>Q 16
Explain colloid giving examples.
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>Revision Exercise>Q 16
Explain suspension giving examples.
EASY
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>Revision Exercise>Q 17
Solutions cannot be separated by process of filtration. 
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>Revision Exercise>Q 17
Mass percentage of a solution containing 10 g of solute in 100 g of water is 10%.