Ideal and Non-Ideal Solutions NEET Questions

Physical Chemistry - Solutions

Ideal and Non-Ideal Solutions MCQ Questions


13.
For an ideal solution, which of the following statements is correct?
A.
The enthalpy of mixing is positive
B.
The volume of mixing is negative
C.
The intermolecular forces are similar to the pure components
D.
The entropy of mixing is zero
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ANSWER :
C. The intermolecular forces are similar to the pure components
14.
An ideal solution follows Raoult’s law:
A.
At all temperatures
B.
At a specific temperature
C.
Only at high temperatures
D.
Only at low temperatures
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ANSWER :
A. At all temperatures
15.
A non-ideal solution with a positive deviation from Raoult’s law will have:
A.
Stronger intermolecular forces in the solution
B.
Weaker intermolecular forces in the solution
C.
No intermolecular forces
D.
High density
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ANSWER :
B. Weaker intermolecular forces in the solution
16.
An ideal solution exhibits:
A.
Boiling point elevation
B.
No volume change on mixing
C.
Freezing point depression
D.
Negative entropy change
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ANSWER :
B. No volume change on mixing
17.
What happens when two liquids form a non-ideal solution with positive deviation?
A.
The total vapor pressure decreases
B.
The total vapor pressure increases
C.
The boiling point increases
D.
The freezing point increases
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ANSWER :
B. The total vapor pressure increases
18.
A non-ideal solution with negative deviation forms:
A.
Maximum boiling azeotrope
B.
Minimum boiling azeotrope
C.
Ideal solution
D.
No azeotrope
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ANSWER :
A. Maximum boiling azeotrope