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SURFACE CHEMISTRY

20794 Physical adsorption

1 Involves the weak attractive interaction between the adsorbent and adsorbate

2 Involves the chemical interactions between the adsorbent and adsorbate

3 Is irreversible in nature

4 Increases with increase of temperature

SURFACE CHEMISTRY

20795 The charge on $A s_{2} S_{3}$ sol is due to the adsorbed

1

H^{+}

2

O H^{-}

3

O^{2 -}

4

S^{2 -}

Explanation:

(d)Charge on $A s_{2} S_{3}$ sol is due to the adsorbed sulphide ion.

SURFACE CHEMISTRY

20796 In the adsorption of acetic acid on activated charcoal, the acetic acid is an

1 Adsorber

2 Absorber

3 Adsorbent

4 Adsorbate

SURFACE CHEMISTRY

20797 Sticking of one substance at the surface of another is called

1 Absorption

2 Chemisorption

3 Adsorption

4 Desorption

SURFACE CHEMISTRY

20794 Physical adsorption

1 Involves the weak attractive interaction between the adsorbent and adsorbate

2 Involves the chemical interactions between the adsorbent and adsorbate

3 Is irreversible in nature

4 Increases with increase of temperature

SURFACE CHEMISTRY

20795 The charge on $A s_{2} S_{3}$ sol is due to the adsorbed

1

H^{+}

2

O H^{-}

3

O^{2 -}

4

S^{2 -}

Explanation:

(d)Charge on $A s_{2} S_{3}$ sol is due to the adsorbed sulphide ion.

SURFACE CHEMISTRY

20796 In the adsorption of acetic acid on activated charcoal, the acetic acid is an

1 Adsorber

2 Absorber

3 Adsorbent

4 Adsorbate

SURFACE CHEMISTRY

20797 Sticking of one substance at the surface of another is called

1 Absorption

2 Chemisorption

3 Adsorption

4 Desorption

SURFACE CHEMISTRY

20794 Physical adsorption

1 Involves the weak attractive interaction between the adsorbent and adsorbate

2 Involves the chemical interactions between the adsorbent and adsorbate

3 Is irreversible in nature

4 Increases with increase of temperature

SURFACE CHEMISTRY

20795 The charge on $A s_{2} S_{3}$ sol is due to the adsorbed

1

H^{+}

2

O H^{-}

3

O^{2 -}

4

S^{2 -}

Explanation:

(d)Charge on $A s_{2} S_{3}$ sol is due to the adsorbed sulphide ion.

SURFACE CHEMISTRY

20796 In the adsorption of acetic acid on activated charcoal, the acetic acid is an

1 Adsorber

2 Absorber

3 Adsorbent

4 Adsorbate

SURFACE CHEMISTRY

20797 Sticking of one substance at the surface of another is called

1 Absorption

2 Chemisorption

3 Adsorption

4 Desorption

SURFACE CHEMISTRY

20794 Physical adsorption

1 Involves the weak attractive interaction between the adsorbent and adsorbate

2 Involves the chemical interactions between the adsorbent and adsorbate

3 Is irreversible in nature

4 Increases with increase of temperature

SURFACE CHEMISTRY

20795 The charge on $A s_{2} S_{3}$ sol is due to the adsorbed

1

H^{+}

2

O H^{-}

3

O^{2 -}

4

S^{2 -}

Explanation:

(d)Charge on $A s_{2} S_{3}$ sol is due to the adsorbed sulphide ion.

SURFACE CHEMISTRY

20796 In the adsorption of acetic acid on activated charcoal, the acetic acid is an

1 Adsorber

2 Absorber

3 Adsorbent

4 Adsorbate

SURFACE CHEMISTRY

20797 Sticking of one substance at the surface of another is called

1 Absorption

2 Chemisorption

3 Adsorption

4 Desorption