Colligative Properties of Dilute Solutions (a Relative Lowering of Vapour Pressure, Depression of Freezing Point...) NEET Questions

Physical Chemistry - Solutions

Colligative Properties of Dilute Solutions (a Relative Lowering of Vapour Pressure, Depression of Freezing Point...) MCQ Questions


13.
Which of the following is NOT affected by colligative properties?
A.
Vapor pressure change
B.
Freezing point change
C.
Boiling point change
D.
Molecular shape
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ANSWER :
D. Molecular shape
14.
The osmotic pressure of a solution increases if

NEET - 2021

A.
temperature decreases
B.
volume increases
C.
concentration increases
D.
solute is non-volatile
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ANSWER :
C. concentration increases
15.
Osmotic pressure of a solution is given by which equation?
A.
π = CRT
B.
π = C/V
C.
π = RT/C
D.
π = C/R
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ANSWER :
A. π = CRT
16.
Which of the following solutions will have the highest boiling point?
A.
1 M glucose solution
B.
1 M NaCl solution
C.
1 M CaCl₂ solution
D.
1 M sucrose solution
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ANSWER :
C. 1 M CaCl₂ solution
17.
What happens to the freezing point when a non-volatile solute is added?
A.
Increases
B.
Decreases
C.
Remains constant
D.
First increases, then decreases
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ANSWER :
B. Decreases
18.
Which of the following is NOT a correct unit of osmotic pressure?
A.
atm
B.
mmHg
C.
N/m²
D.
L/mol
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ANSWER :
D. L/mol