|
How are the following colloids different from each other in respect of their dispersion medium and dispersed phase?
|
|
2
|
3070
|
November 1, 2016
|
|
Explain what is observed,
|
|
2
|
346
|
November 1, 2016
|
|
In reference to Freundlich adsorption isotherm
|
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2
|
1240
|
November 1, 2016
|
|
Artificial rain is caused by spraying salt over clouds
|
|
1
|
6990
|
November 1, 2016
|
|
Why is it essential to wash the precipitate with water before estimating it quantitatively?
|
|
1
|
1303
|
November 1, 2016
|
|
Give reasons for the following observations:
|
|
2
|
7035
|
November 1, 2016
|
|
Gelatin which is a peptide, is added in ice-creams. What can be its role?
|
|
1
|
2850
|
November 1, 2016
|
|
Give four uses of emulsions
|
|
1
|
1436
|
November 1, 2016
|
|
What are emulsions? What are their different types?
|
|
2
|
589
|
November 1, 2016
|
|
What modification can you suggest in the Hardy-Schulze rule?
|
|
1
|
3682
|
November 1, 2016
|
|
How are the following colloidal solutions prepared?
|
|
2
|
2122
|
November 1, 2016
|
|
Write the dispersed phase and dispersion medium of the following colloidal systems
|
|
2
|
11203
|
November 1, 2016
|
|
Comment on the statement that colloid is not a substance but a state of substance
|
|
1
|
5574
|
November 1, 2016
|
|
What do you understand by activation of adsorbent? How is it achieved?
|
|
1
|
4513
|
November 1, 2016
|
|
What are the factors which influence the adsorption of the gas on a solid?
|
|
1
|
494
|
November 1, 2016
|
|
Do the vital functions of the body such as digestion get affected during fever?
|
|
2
|
4613
|
November 1, 2016
|
|
Why is desorption important for a substance to act as good catalyst?
|
|
1
|
1905
|
November 1, 2016
|
|
What is the role of diffusion in heterogeneous catalysis?
|
|
1
|
2172
|
November 1, 2016
|
|
Why are substances like platinum and palladium often used for carrying out electrolysis of aqueous solutions?
|
|
1
|
5192
|
November 1, 2016
|
|
How does a solid catalyst enhance the rate of combination of gaseous molecules?
|
|
1
|
1752
|
November 1, 2016
|
|
Why do physisorption and chemisorption behave differently with rise in temperature?
|
|
1
|
2797
|
November 1, 2016
|
