A liquid aerosol is a colloidal system of:

(1) A liquid dispersed in a solid

(2) A liquid dispersed in a gas

(3) A gas dispersed in a liquid

(4) A solid dispersed in a gas

Subtopic:  Colloidal Solution |
 77%
From NCERT
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Negative catalyst or inhibitor is one:

(1) Which retards the rate of reaction

(2) Takes the reaction in forward direction

(3) Promotes the side reaction

(4) None of the above

Subtopic:  Catalyst |
 94%
From NCERT
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Which of the following does not form anionic micelle?

(1) C12H25COONa                   

(2) C12H25SO4Na

(3) C12H25SO3Na                     

(4) C12H25(NH3)3Cl

Subtopic:  Emulsions |
 80%
From NCERT
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Clouds, mist, fog and aerosols are colloidal solution of:

(1) Solid in a gas

(2) Gas in a solid

(3) Liquid in a gas

(4) Gas in a liquid

Subtopic:  Colloidal Solution |
 84%
From NCERT
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Gold number is the index for:

(a)protective power of lyophilic colloid

(b)purity of gold

(c)metallic gold

(d)electroplated gold

Subtopic:  Colloidal Solution | Lyophilic & Lyophobic Sol |
 94%
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Which is an emulsion?

(1) Boot polish                             

(2) Lipstic

(3) Shampoo                               

(4) All of these

Subtopic:  Emulsions |
 77%
From NCERT
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Milk contains a protein that is very good for health. The protein is:

(a) caffeine

(b) calciferol

(c) keratin

(d) casein

Subtopic:  Colloidal Solution | Lyophilic & Lyophobic Sol |
 92%
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The charge on As2S3 sol is due to the adsorption of:

(1) H+                             

(2) OH-

(3) O2-                             

(4) S2-

Subtopic:  Colloidal Solution |
 83%
From NCERT
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Which acts as poison for Pd-charcoal in lindlar's catalyst ?

(a) BaSO4

(b) Quiniline

(c) Both (a) and (b)

(d) None of these

Subtopic:  Catalyst |
 75%
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In a reversible reaction, a catalyst:

(1) Increases the rate of the forward reaction only

(2) Increases the rate of the forward reaction to a greater extent than that of  the backward reaction

(3) Increases the rate of the forward reaction and decreases that of the backward reaction to the different extent

(4) Increases the rate of the forward and backward reactions equally

Subtopic:  Catalyst |
 76%
From NCERT
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