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Test: Adsorption


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10 Questions MCQ Test Topic-wise MCQ Tests for NEET | Test: Adsorption

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Test: Adsorption - Question 1

What kind of forces exists between adsorbate and adsorbent in physisorption?

Detailed Solution for Test: Adsorption - Question 1

Physisorption is defined as adsorption in which force between adsorbate and adsorbent is physical van der Waals force also known as London force.

Test: Adsorption - Question 2

Adsorbate is represented by which spheres in the following diagram.

Detailed Solution for Test: Adsorption - Question 2

The adsorbent is that substance that gathers/adsorb molecules on its surface, and adsorbate is that substance that gets gather/adsorb by itself on the surface of the absorbent. 

Hence, Black molecules should be adsorbate.

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Test: Adsorption - Question 3

Which phenomenon is represented by the following diagram? 

Detailed Solution for Test: Adsorption - Question 3

Adsorption is a surface phenomenon where concentration of the molecules, is more on the surface than in the core.

Test: Adsorption - Question 4

Which of the following statement is correct about Langmuir’s adsorption?

Detailed Solution for Test: Adsorption - Question 4

At the maximum adsorption, only a monolayer is formed: molecules of adsorbate do not deposit on other, already adsorbed, molecules of adsorbate, only on the free surface of the adsorbent.

Test: Adsorption - Question 5

Why shoes, purses and leather items have silica gel pouches kept in them?

Detailed Solution for Test: Adsorption - Question 5

Solids, particularly in a finely divided state, have a large surface area and so silica gel is a good adsorbent and keeps the leather dry and free of moisture.

Test: Adsorption - Question 6

The relation between extent of adsorption (x/m) and pressure at constant temperature is called as:

Detailed Solution for Test: Adsorption - Question 6

Freundlich adsorption isotherm gives an empirical relationship between the quantity of gas adsorbed by the unit mass of solid adsorbent (x/m) and pressure at a specific temperature.

Test: Adsorption - Question 7

Which of the following is the reason for adsorption?

Detailed Solution for Test: Adsorption - Question 7

There is an unbalanced attractive force of adsorbent are responsible for attracting the adsorbate particles on its surface.

*Multiple options can be correct
Test: Adsorption - Question 8

Which of the following options are correct?

Detailed Solution for Test: Adsorption - Question 8

The formation of micelles takes place only above a particular temperature called Kraft temperature (Tk) and above a particular concentration called critical micelle concentration (CMC).

On dilution, these colloids revert back to individual ions.

Hence, option A, C is correct.

Test: Adsorption - Question 9

Adsorption is the phenomenon in which a substance:

Detailed Solution for Test: Adsorption - Question 9

Adsorption is the adhesion (accumulation) of molecules of the gas, liquid, or dissolved solid particles (adsorbate) onto the surface (adsorbent)

Test: Adsorption - Question 10

Freundlich adsorption isotherm is a plot between:

Detailed Solution for Test: Adsorption - Question 10

The plot between the extent of adsorption (x/m) against the pressure of gas (P) at constant temperature (T) is called the adsorption isotherm.

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