|
Give two examples each for Aerosol, Emulsion
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|
0
|
4938
|
March 19, 2018
|
|
Identify colloids and true solutions from the following:
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|
0
|
7702
|
March 19, 2018
|
|
Explain why particles of a colloidal solution do not settle down when left undisturbed, while in the case of a suspension they do
|
|
0
|
2797
|
March 19, 2018
|
|
Why is it not possible to distinguish particles of a solute from the solvent in solution?
|
|
0
|
5297
|
March 19, 2018
|
|
‘Sea water can be classified as homogeneous as well as heterogeneous mixture.’
|
|
0
|
7007
|
March 19, 2018
|
|
Why is air considered as a mixture and not compound?
|
|
2
|
14210
|
March 25, 2017
|
|
How can we obtain different gases from air?
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|
2
|
4756
|
December 4, 2017
|
|
Draw a flow diagram to show the water purification system in water works
|
|
1
|
23246
|
March 23, 2017
|
|
A student is given a mixture of naphthalene ball’s powder and common salt
|
|
1
|
9679
|
March 23, 2017
|
|
How will you separate a mixture of oil and water?
|
|
1
|
4127
|
March 23, 2017
|
|
Why is crystallisation better than evaporation?
|
|
1
|
20614
|
March 23, 2017
|
|
Give the applications of chromatography
|
|
1
|
6166
|
March 23, 2017
|
|
Give the applications of centrifugation
|
|
1
|
22613
|
March 23, 2017
|
|
State the properties of colloidal solution
|
|
1
|
3896
|
March 23, 2017
|
|
What is a colloidal solution?
|
|
1
|
3956
|
March 23, 2017
|
|
State the properties of a suspension
|
|
1
|
1119
|
March 23, 2017
|
|
State the properties of a solution
|
|
1
|
7556
|
March 23, 2017
|
|
Distinguish between a physical change and chemical change
|
|
1
|
2845
|
March 23, 2017
|
|
Give the differences between mixture and compound
|
|
1
|
10549
|
March 23, 2017
|
|
Why is mixture called impure substance?
|
|
1
|
2105
|
March 23, 2017
|