Micelles and Molecular Aggregation MCQs Questions Answers
The part of the stearate ion that is hydrophilic in nature is ____
(A). Â Head
(B). Â Hydrocarbon chain
(C). Â Tail
(D). Â None of these
(E). None of these
Multiple Choice Question Answer: Â a
The molecular formula of the stearate ion is _____
(A). C35H17COO+
(B). C17H35COO–
(C). C35H17COO–
(D). C17H35COO+
(E). None of these
Multiple Choice Question Answer:Â b
What happens to The number of molecules in a conduction band?
(A). Â Increases with a rise in temperature
(B). Â Decreases with a rise in temperature
(C). Â Â Increases with fall in temperature
(D). Â Does not depend upon the temperature
(E). None of these
Multiple Choice Question Answer: Â a
In water, non-polar molecules tend to aggregate because they are forced to come into close proximity with one another due to which of the following?
(A). Â Vander Waals interactions
(B). Â Hydrophilic interactions
(C). Hydrophobic interactions
(D). Â Electrovalent interactions
(E). None of these
Multiple Choice Question Answer: Â c
The metallic bonds are non-directional due to _____
(A). Â There is no change in inter-kernel distance
(B). Â There is always a non-uniform distribution of the mobile valence electrons around its kernels
(C). Â There is always a uniform distribution of the mobile valence electrons around its kernels
(D). Â There is a change in inter-kernel distance
(E). None of these
Multiple Choice Question Answer: Â c
Which of the following is The number of stearate ions required to form a micelle of colloidal size?
(A). Â 50
(B). Â 60
(C). Â 80
(D). Â 70
(E). None of these
Multiple Choice Question Answer: Â d
The correct statement is that the soap micelle is _____
(A). Â unstable because of the positive charge on its head
(B). Â stable because of the positive charge on its head
(C). Â stable because of the negative charge on its head
(D). Â unstable because of the negative charge on its head
(E). None of these
Multiple Choice Question Answer: Â c
The type of molecules that forms the aggregate through a self-assembly process which is driven by the hydrophobic effect is _______
(A). Â Electrophilic
(B). Â Ambiphilic
(C). Â Nucleophilic
(D). Â None of these
(E). None of these
Multiple Choice Question Answer:Â b
Which of the following is The conductivity of micelles?
(A). Â Equals to a colloidal solution
(B). Â Lower than a colloidal solution
(C). Â Higher than a colloidal solution
(D). Â None of these
(E). None of these
Multiple Choice Question Answer: Â c
Which of the following is The process by which individual molecules form the defined aggregate?
(A). Â Self-aggregation
(B). Â Aggregation
(C). Â Self-assembly
(D). Â Assembly
(E). None of these
Multiple Choice Question Answer: Â c
Which of the following is The major cause of molecular aggregation?
(A). Â Inter-molecular interactions
(B). Â Induction
(C). Â Conduction
(D). Â Resonance
(E). None of these
Multiple Choice Question Answer: Â a
Not a state of aggregation of matter is ________
(A). Â Solid
(B). Â None of these
(C). Â Plasma
(D). Liquid and Gas
(E). None of these
Multiple Choice Question Answer: Â b
The inter-molecular interaction originates from the _____
(A). Â magnetic properties of atoms
(B). Â cohesive properties of atoms
(C). Â electric properties of atoms
(D). Â None of these
(E). None of these
Multiple Choice Question Answer:Â c
When do the Micelles behave as the colloids?
(A). Concentration is greater than CMC
(B). Â Concentration is equal to CMC
(C). Â Â Concentration is less than CMC
(D). Â They always behave as colloids
(E). None of these
Multiple Choice Question Answer: Â a
Which of the following is The transition of ions to micelle?
(A). Â Irreversible
(B). Â Reversible
(C). Â All of these
(D). Â None of these
(E). None of these
Multiple Choice Question Answer:Â b
_________ is the water-insoluble
(A).  COO–
(B). Â C17H35
(C). Â Na+
(D). Â All of these
(E). None of these
Multiple Choice Question Answer:Â c
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