The graph between logxm vs log p is given below:

What is the value of the slope?

1. 12n

2. n

3. 1n

4.1n2

Subtopic:  Adsorption Isotherm |
 92%
From NCERT
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Consider the following graph between xm (extent of adsorption) and pressure:

What is the correct relation between T1, T2, and T3

1. T3 <  T2  > T1
2. T1 < T2  < T3
3. T1 > T2  > T3
4. None of the above

Subtopic:  Adsorption Isotherm |
 68%
From NCERT
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Match the items given in Column I and Column II.

Column I Column II
A. Protective colloid 1. FeCl3 + NaOH
B. Liquid-liquid colloid 2. Lyophilic colloids
C. Positively charged colloid 3. Emulsion
D. Negatively charged colloid 4. FeCl+ hot water

Codes

A B C D
1. 3 2 4 1
2. 1 4 3 2
3. 2 3 4 1
4. 4 1 3 2

Subtopic:  Emulsions |
 89%
From NCERT
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Match the statement given in Column I with the phenomenon given in Column II.

Column I Column II
A. Dispersion medium moves in an electric field 1. Osmosis
B. Solvent molecules pass through a semi-permeable membrane towards the solvent side 2. Electrophoresis
C. Movement of charged colloidal particles under the influence of applied electric potential towards oppositely charged electrodes 3. Electroosmosis
D. Solvent molecules pass through semi-permeable membranes towards the solution side 4. Reverse osmosis

Codes

A B C D
1. 2 3 4 1
2. 1 2 3 4
3. 3 4 2 1
4. 4 1 3 2
Subtopic:  Colloidal Solution |
 68%
From NCERT
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Match the items of Column I and Column II.

Column I

Column II

A. Whipped cream

B. Pumice stone

C.  Milk

D.  Paints

1. Dispersion of liquid in liquid

2. Dispersion of solid in liquid

3.  Dispersion of gas in solid

4.  Dispersion of gas in liquid

 Codes

Options:  A   B    C   D  
1. 2 3 4 1
2. 1 2 3 5
3. 5 4 3 2
4. 4 3 1 2

Subtopic:  Colloidal Solution |
 86%
From NCERT
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Given below are two statements: 
 
Assertion (A): Physisorption decrease with the increase in temperature.
Reason (R): Physisorption is exothermic in nature.

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.


 
Subtopic:  Adsorption and Absorption |
 69%
From NCERT
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Given below are two statements: 
 
Assertion (A): Powdered substances are more effective adsorbents than their crystalline forms
Reason (R): Powdered substance has more surface area and the extent of adsorption increases with the increase of the surface area of the adsorbent.

 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.


 
Subtopic:  Adsorption and Absorption |
 95%
From NCERT
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Match the items in Column I and Column II.

Column I Column II
A. Dialysis 1. Cleansing action of soap
B. Peptization 2. Coagulation
C. Emulsification 3. Colloidal sol formation
D. Electrophoresis 4. Purification

Codes

A B C D
1. 2 3 4 1
2. 1 2 3 4
3. 1 4 3 2
4. 4 3 1 2
Subtopic:  Colloidal Solution | Emulsions |
 83%
From NCERT
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Select the correct option based on statements below:

Assertion (A): Detergents with low CMC are more economical to use.
Reason (R): The cleansing action of detergents involves the formation of micelles. These are formed when the concentration of detergents becomes equal to CMC.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.
Subtopic:  Colloidal Solution |
 62%
From NCERT
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Select the correct option based on statements below:

Assertion (A): The coagulation power of Al3+ is more than Na+.
Reason (R): Greater the valency of the flocculating ion added, the greater is its power to cause precipitation (Hardy-Schulze rule)
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.
Subtopic:  Colloidal Solution |
 90%
From NCERT
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