Surfaces And Catalysis QUESTIONS AND ANSWERS

IIT JEE : Surfaces And Catalysis QUESTIONS AND ANSWERS :: part2 : 11 to 15

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

11.Which of the following statements is not correct for lyophilic sols?

Surface tension of a lyophilic sol is often lower than that of the medium

Viscosity is much higher than that of medium

The particles may migrate in either direction or mot at all in an electric field

Their particles can be easily detected under ultra-microscope.

12.The difference between lyophilic and lyophibic colloids is in their

Particle size

Filterability

Behaviour towards dispersion medium

None of the above is correct.

13.The STEM (Scanning Transmission Electron Microscope) is used to determine

Charge of the colloid

Size of the colloid

Colour of the colloid

Nature of the colloid.

14.In adsorption of acetic acid on charcoal, the acetic acid is

Absorbent

Adsorbent

Absorbate

Adsorbate.

15.Surface tension of a lyophilic sol is generally �� to/than that of the medium.

equal

less

twice.

More Surfaces And Catalysis QUESTIONS AND ANSWERS available in next pages

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