Preparation of Lyophilic and Lyophobic Sols NEET Questions

Organic Chemistry - Principles of Practical Chemistry

Preparation of Lyophilic and Lyophobic Sols MCQ Questions


1.
Lyophilic sols are best prepared by
A.
Agglomeration
B.
Dispersion
C.
Condensation
D.
Dialysis
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ANSWER :
C. Condensation
2.
Lyophobic sols are generally prepared by
A.
Agglomeration
B.
Direct mixing
C.
Condensation methods
D.
Polymerization
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ANSWER :
C. Condensation methods
3.
Lyophilic sols are stable due to
A.
High surface tension
B.
Low surface area
C.
Hydration
D.
Hydrolysis
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ANSWER :
C. Hydration
4.
Which method is used to prepare gold sol?
A.
Peptization
B.
Electrical disintegration
C.
Dialysis
D.
Filtration
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ANSWER :
B. Electrical disintegration
5.

Colloidal Fe(OH)3 can be prepared by adding

NEET - 2022

A.

Hot water to ferric chloride solution

B.

NaOH to ferric chloride

C.

Fe to water

D.

FeCl2 to hot water

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ANSWER :

B. NaOH to ferric chloride

6.
Which of the following is not used in preparing lyophobic sols?
A.
Electrical dispersion
B.
Condensation
C.
Peptization
D.
Dialysis
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ANSWER :
D. Dialysis