Van’t Hoff Factor and its Significance NEET Questions

Physical Chemistry - Solutions

Van’t Hoff Factor and its Significance MCQ Questions


13.
Which colligative property is most commonly used to determine van’t Hoff factor?
A.
Boiling point elevation
B.
Freezing point depression
C.
Osmotic pressure
D.
All of these
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ANSWER :
D. All of these
14.
If i = 3 for a solute in solution, how many particles does it produce per molecule?
A.
1
B.
2
C.
3
D.
4
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ANSWER :
C. 3
15.
The abnormal molar mass of a solute is due to

NEET - 2015

A.
strong solute-solvent interaction
B.
association or dissociation of solute
C.
high concentration of solution
D.
dissolution of inert gas
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ANSWER :
B. association or dissociation of solute
16.
A higher van’t Hoff factor means:
A.
Lower boiling point
B.
Higher boiling point
C.
No change in boiling point
D.
Lower freezing point
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ANSWER :
B. Higher boiling point
17.
A 0.1 molal aqueous solution of a weak acid HA has a freezing point depression of 0.186°C. Assuming complete ionization, the van’t Hoff factor (i) will be (Kf for water = 1.86 K kg mol⁻¹)

NEET - 2021

A.
1
B.
1.5
C.
2
D.
3
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ANSWER :
B. 1.5
18.
Which of the following shows maximum van’t Hoff factor?

NEET - 2023

A.
NaCl
B.
Glucose
C.
CaCl₂
D.
CH₃COOH in benzene
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ANSWER :
C. CaCl₂