Surfaces And Catalysis QUESTIONS AND ANSWERS

IIT JEE : Surfaces And Catalysis QUESTIONS AND ANSWERS :: part2 : 16 to 20

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

16.The colloidal system consisting of a liquid adsorbent and a gas adsorbate is termed as

Aerosol

Liquid aerosol

Foam

Gel.

17.Gold number gives an indication of

Protecting power of colloids

Purity of gold sol

Purity of any sol

Strength of gold sol in moles/per litre.

18.Which of the following statements is not true for chemisorption?

It is highly specific

Involves strong interactions between adsorbent and adsorbate

Extent of adsorption always decreases with increase in temperature

Adsorption is restricted to monomolecular layers.

19.The hydrophobic colloid among the following is

Gelatin

Starch

Sulphur

Albumin.

20.Which of the following statements is not true for a lyophobic sol?

It is irreversible

It is less stable

It carries charges

Its colloidal particles are highly solvated.

More Surfaces And Catalysis QUESTIONS AND ANSWERS available in next pages

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