Surface Chemistry  MCQs

MCQs of Surface Chemistry

Showing 61 to 70 out of 203 Questions
4 5 6 7 8 9
61.
At critical micelle concentration, the molecules on the surface _____ .
(a) decompose
(b) associate
(c) dissociate
(d) completely soluble
Answer:

Option (b)

62.
Which of the following colloidal sol cannot be prepared by Bredig’s arc methods ?
(a) Sulphur
(b) Silver
(c) Gold
(d) Platinum
Answer:

Option (a)

63.
From which of the following is adsorption not used ?
(a) Gas mask
(b) In softening of hard water
(c) In preparation of fertilizers
(d) In purification of vegetable ghee
Answer:

Option (c)

64.
In which of the following fields, is the study of surface phenomenon useful ?
(a) Industries
(b) Analytical chemistry
(c) In preparation of vegetable ghee
(d) In all three above
Answer:

Option (d)

65.
Which of the following is oil/water (oil in water)emulsion ?
(a) Cold cream
(b) Vanishing cream
(c) Butter
(d) Cod liver oil
Answer:

Option (b)

66.
What is the solid substance called on which adsorption takes place ?
(a) Adsorbent
(b) Adsorbate
(c) Absorbent
(d) Absorbate
Answer:

Option (a)

67.
If surface area is more,_____ is more
(a) sorption
(b) adsorption
(c) desorption
(d) absorption
Answer:

Option (b)

68.
The decomposition of N2O takes place on which metal ?
(a) Pd
(b) Ni
(c) Pt
(d) Fe
Answer:

Option (c)

69.
The decomposition of HI takes place on which metal ?
(a) Gold
(b) Silver
(c) Copper
(d) Aluminum
Answer:

Option (a)

70.
For which of the following H+(aq) is used as a catalyst ?
(a) Decomposition of  O3
(b) Hydrolysis of ester
(c) Preparation of  H2SO4
(d) Decomposition of HI
Answer:

Option (b)

Showing 61 to 70 out of 203 Questions
4 5 6 7 8 9