Question Pool Surface Chemistry

Surface Chemistry - SAMAGRA Question Pool & Answers | Class 12

Kerala Syllabus SAMAGRA SCERT SAMAGRA Question Pool for Class 12 Chemistry Surface Chemistry

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Qn 1.

Why gas masks are used by miners in coal mines while working?



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Qn 2.

Why is adsorption always exothermic?



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Qn 3.

Differentiate between adsorption  and absorption?



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Qn 4.

What is the effect of temperature on adsorption of a gas on solid



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Qn 5.

liquid in liquid type colloids are known as .........



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Qn 6.

The movement of colloidal particle under an applied electrical field is called........



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Qn 7.

Milk is an........

(Gel, Aerosol, Emulsion, Solid sol)



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Qn 8.

What are the characteistics of enzyme catalysis?



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Qn 9.

Explain Hardy Schulze rule?



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Qn 10.

Differentiate homogeneous and heterogeneous catalysis.



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Qn 11.

What are protective colloids?



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Qn 12.

Describe the cleaning action of soap and detergents?



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Qn 13.

Write an example for macromolecular colloid?



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Qn 14.

Write any two differences between physisorption and chemisorption



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Qn 15.

What is meant by associated colloid.Give an example



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Qn 16.

Define Brownian movement



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Qn 17.

Name two adsorbents used for controlling humidity.



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Qn 18.

What is zetapotential ?



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Qn 19.

The colour of finest gold sol is ...................



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Qn 20.

Briefly explain the reason for the stability of colloids



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Qn 21.

Name two adsorption indicators?



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Qn 22.

What are the conditions of tyndall effect?



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Qn 23.

Match the following

             A                                             B

sol                                              cream

emulsion                                    jam

gel                                             froth

foam                                         paint



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