# The protecting power of lyophilic colloidal sol is expressed in terms of: 1. Coagulation value 2. Gold number 3. Critical micelle concentration 4. Oxidation number

Subtopic:  Colloidal Solution |
78%
AIPMT - 2012
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NEET 2023 - Target Batch - Aryan Raj Singh
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If x is the amount of adsorbate and m is the amount of adsorbent, which of the following relations is not related to adsorption process?

1.  $\frac{\mathrm{x}}{\mathrm{m}}=\mathrm{f}\left(\mathrm{T}\right)$ $\mathrm{at}$ $\mathrm{constant}$ $\mathrm{P}$

2.  $\mathrm{p}=\mathrm{f}\left(\mathrm{T}\right)$ $\mathrm{at}$ $\mathrm{constant}$ $\left(\mathrm{x}/\mathrm{m}\right)$

3.  $\frac{\mathrm{x}}{\mathrm{m}}=\mathrm{p}×\mathrm{T}$

4.  $\frac{\mathrm{x}}{\mathrm{m}}=\mathrm{f}\left(\mathrm{p}\right)$ $\mathrm{at}$ $\mathrm{constant}$ $\mathrm{T}$

55%
From NCERT
AIPMT - 2011
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NEET 2023 - Target Batch - Aryan Raj Singh

The Langmuir adsorption isotherm is deduced using the assumption:

 1 The adsorption takes place in multilayers 2 The adsorption sites are equivalent in their ability to adsorb the particles 3 The heat of adsorption varies with coverage 4 The adsorbed molecules interact with each other

63%
AIPMT - 2007
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A plot of log x/m versus log p for the adsorption of a gas on a solid gives a straight line with a slope equal to:

1. log

2. n

3. $\frac{1}{n}$

4. log 1/k

82%
From NCERT
AIPMT - 2006
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following statements about enzyme catalysis is incorrect?

 1 Enzymes are mostly proteinous in nature. 2 Enzyme action is specific. 3 Enzymes are denaturized by ultraviolet rays at high temperatures. 4 Enzymes are least reactive at an optimum temperature.
Subtopic:  Catalyst |
88%
From NCERT
AIPMT - 2012
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In the Freundlich adsorption isotherm, the value of 1/n is:
1. Between 0 and 1 in all cases.
2. Between 2 and 4 in all cases.
3. 1 in the case of physical adsorption.
4. 1 in the case of chemisorption.

91%
From NCERT
AIPMT - 2012
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Which property of colloids is not dependent on the charge on colloidal particles?

1. Coagulation

2. Electrophoresis

3. Electro-osmosis

4. Tyndall effect

Subtopic:  Colloidal Solution |
93%
From NCERT
AIPMT - 2014
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Which property of the colloidal solution is independent of charge on the colloidal particles?

1. Coagulation
2. Electrophoresis
3. Electroosmosis
4. Tyndall effect

Subtopic:  Colloidal Solution |
83%
From NCERT
NEET - 2015
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh