Ideal and Non-Ideal Solutions NEET Questions

Physical Chemistry - Solutions

Ideal and Non-Ideal Solutions MCQ Questions


13.
Which of these is NOT an example of an ideal solution?
A.
Chloroform + Acetone
B.
n-Hexane + n-Heptane
C.
Bromoethane + Chloroethane
D.
Benzene + Toluene
😑 View Answer Rough Work Error
ANSWER :
A. Chloroform + Acetone
14.
A non-ideal solution is one which:
A.
Does not obey Raoult's law over the entire range of concentration
B.
Always has negative ΔmixH
C.
Has zero vapour pressure
D.
Does not obey Henry's law
😑 View Answer Rough Work Error
ANSWER :
A. Does not obey Raoult's law over the entire range of concentration
15.
Non-ideal solutions show two types of deviations from Raoult's law:
A.
Volatile and non-volatile
B.
Forward and reverse
C.
Strong and weak
D.
Positive and negative
😑 View Answer Rough Work Error
ANSWER :
D. Positive and negative
16.
In a solution showing positive deviation from Raoult's law, the actual vapour pressure is:
A.
Equal to that predicted by Raoult's law
B.
Independent of composition
C.
Higher than that predicted by Raoult's law
D.
Lower than that predicted by Raoult's law
😑 View Answer Rough Work Error
ANSWER :
C. Higher than that predicted by Raoult's law
17.
For a solution showing positive deviation from Raoult's law, the values of ΔmixH and ΔmixV are:
A.
ΔmixH = 0 and ΔmixV = 0
B.
ΔmixH > 0 and ΔmixV > 0
C.
ΔmixH < 0 and ΔmixV < 0
D.
ΔmixH > 0 and ΔmixV < 0
😑 View Answer Rough Work Error
ANSWER :
B. ΔmixH > 0 and ΔmixV > 0
18.
In positive deviation from Raoult's law, A-B intermolecular forces are:
A.
Equal to A-A and B-B forces
B.
Weaker than A-A and B-B forces
C.
Stronger than A-A and B-B forces
D.
Zero
😑 View Answer Rough Work Error
ANSWER :
B. Weaker than A-A and B-B forces