Surface Chemistry Test

Question 1
1 / -0

Animal charcoal is used in decolourising colour of liquids because it is a good_________

A
Adsorbate

B
Adsorbent

C
Oxidising agent

D
Reducing agent

Question 2
1 / -0

Which of the following colloids are formed when hydrogen sulphide gas is passed through a cold solution of arsenious oxide?

A
$$ As_{2}S_{3} $$

B
$$ As_{2}O_{3} $$

C
$$ As_{2}S $$

D
$$ As_{2}H_{2} $$

Question 3
1 / -0

Which of the following is not an emulsion?

A
Butter

B
Ice cream

C
Milk

D
Cloud

Question 4
1 / -0

Two percent of ethanol is added during the oxidation of chloroform to stop the formation of carbonyl chloride. In this reaction ethanol acts as

A
Auto catalyst

B
Negative catalyst

C
Positive catalyst

D
None of thewse

Question 5
1 / -0

An emulsifier is a substance which____________

A
stabilises the emulsion

B
homogenises the emulsion

C
coagulates the emulsion

D
retards the dispersion of liquid in liquid

Question 6
1 / -0

Hydrophilic sols are________

A
Reversible

B
Irreversible

C
Unstable

D
None of these

Question 7
1 / -0

Cod liver oil is

A
An emulsion

B
Solution

C
Colloidal solution

D
Suspension

Question 8
1 / -0

Reagent (C) is:

A
$$Me_2Cd$$

B
$$Me_2CuLi$$

C
$$CH_3I$$

D
$$Me_2SO_4 + NaOH$$

Question 9
1 / -0

Catalyst used in dimerisation of acetylene to prepare chloroprene is

A
$$HgSO_{4} + H_{2}SO_{4}$$

B
$$Cu_{2}Cl_{2}$$

C
$$Cu_{2}Cl_{2} + NH_{4}Cl$$

D
$$Cu_{2}Cl_{2} + NH_{4}OH$$

Question 10
1 / -0

In which of the following reactions heterogeneous catalysis is involved?

(a) $$2 SO_{2}(g)+O_{2}(g) \quad \stackrel{NO(g)}{\longrightarrow} 2 SO_{3}(g)$$

(b) $$2 S
O_{2}(g) \stackrel{Pt(s)}{\longleftarrow} 2 S O_{3}(g)$$

(c) $$N_{2}(g)+3
H_{2}(g\stackrel{Fe(s)}{\longrightarrow} 2 N H_{3}(g)$$

(d) $$C
H_{3} C O O C H_{3}(l)+H_{2} O(l) \stackrel{H Cl}{\longrightarrow} C H_{3} C O
O H(a q)+C H_{3} O H(a q)$$

A
(b),(c)

B
(b),(c),(d)

C
(a), (b), (c)

D
(d)

Submit Test

Surface Chemist...

Question 1

Adsorbate

Adsorbent

Oxidising agent

Reducing agent

Question 2

$$ As_{2}S_{3} $$

$$ As_{2}O_{3} $$

$$ As_{2}S $$

$$ As_{2}H_{2} $$

Question 3

Butter

Ice cream

Milk

Cloud

Question 4

Auto catalyst

Negative catalyst

Positive catalyst

None of thewse

Question 5

stabilises the emulsion

homogenises the emulsion

coagulates the emulsion

retards the dispersion of liquid in liquid

Question 6

Reversible

Irreversible

Unstable

None of these

Question 7

An emulsion

Solution

Colloidal solution

Suspension

Question 8

$$Me_2Cd$$

$$Me_2CuLi$$

$$CH_3I$$

$$Me_2SO_4 + NaOH$$

Question 9

$$HgSO_{4} + H_{2}SO_{4}$$

$$Cu_{2}Cl_{2}$$

$$Cu_{2}Cl_{2} + NH_{4}Cl$$

$$Cu_{2}Cl_{2} + NH_{4}OH$$

Question 10

(b),(c)

(b),(c),(d)

(a), (b), (c)

(d)

User

Question Analysis

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.