Surfaces And Catalysis QUESTIONS AND ANSWERS

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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