Measuring Zeta potential is useful in determining which of the following property of a colloidal solution:

1. Solubility.

2. Stability of the colloidal particles.

3. Size of the colloidal particles.

4. Viscosity.

Subtopic:  Colloidal Solution |
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In which of the sols, the colloidal particles are with a negative charge?

1. TiO2

2. Hemoglobin

3. Starch

4. Hydrated Al2O3

Subtopic:  Colloidal Solution |
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Which of the following represents a Freundlich adsorption isotherm?

1. xm=kp0.3

2. xm=kp2.5

3. xm=kp-0.5

4. xm=kp-1

Subtopic:  Adsorption Isotherm |
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Which one of the following forms micelles in aqueous solution above certain concentration -

1. Glucose

2. Urea

3. Dodecyl trimethyl ammonium chloride

4. Pyridinium chloride

Subtopic:  Colloidal Solution |
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At the critical micelle concentration (CMC) the surfactant molecules :
1.  Associate
2.  Dissociate
3.  Decompose
4.  Become completely soluble

Subtopic:  Colloidal Solution |
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According to hardy Schulze law the order of coagulation power of cations will be:

1. Na+ > Ba+2  > Al+3

2.  Al+3 > Ba+2  > Na+

3.  Ba+2 > Al+3  > Na+

4.  Al+3  > Na+> Ba+2 

Subtopic:  Colloidal Solution |
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Which one of the following method is commonly used method for destruction of colloid :

1. Dialysis

2. Condensation

3. Filteration by animal membrane

4. By adding electrolyte

Subtopic:  Colloidal Solution |
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Position of the nonpolar & polar part in Micelle is:

1. Polar at the outer surface but non-polar at the inner surface
2. Polar at inner surface but non-polar at the outer surface
3. Distributed all over the surface
4. Present on the surface only
Subtopic:  Colloidal Solution |
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Which of the following is correct : -
1. Cyclo heptane is an aromatic compound
2. Diastase is an enzyme
3. Acetophenone is an ether
4. All the above

Subtopic:  Catalyst |
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Which is not correct regarding the adsorption of a gas on the surface of solid: -

1. On increasing temperature adsorption increase continuously
2. Enthalpy & entropy change is negative
3. Adsorption is more for some specific substance
4. Reversible

Subtopic:  Adsorption and Absorption |
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