IIT JEE Questions And Answers :: Surfaces And Catalysis: part1



IIT JEE : Surfaces And Catalysis QUESTIONS AND ANSWERS :: part1 : 21 to 25

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :

21.Lyophilic sols have .......... between disperese phase and dispersion.

strong attractive interaction
little attractive interaction
repulsive interaction
None of these.

22.Size of colloidal particles ranges between

1 nm to 100 nm
1 nm to 1000 nm
10 nm to 1000 nm
100 nm to 1000 nm.

23.The average molecular mass of colloidal particles can be determined by study of

Elevation in boiling point
Osmotic pressure
Tyndall effect
Lowering of vapour pressure.

24.Gold number is minimum for

Starch
Gelatin
Gum arabic
Albumin.

25.Hydrophilic sols are stable due to

Small size of the particle
Large size of the particle
Cgarge on the particle
Attractive interaction between colloidal particles and the dispersion mecium.

More Surfaces And Catalysis QUESTIONS AND ANSWERS available in next pages

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