Kohlrausch’s Law and its Applications NEET Questions

Physical Chemistry - Redox Reactions and Electrochemistry

Kohlrausch’s Law and its Applications MCQ Questions


7.
Kohlrausch’s law is used to calculate the degree of dissociation of
A.
Strong electrolytes
B.
Weak electrolytes
C.
Non-electrolytes
D.
Colloids
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ANSWER :
B. Weak electrolytes
8.
Which of the following increases with dilution?
A.
Molar conductivity
B.
Conductance
C.
Degree of dissociation
D.
All of the above
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ANSWER :
D. All of the above
9.
Kohlrausch’s law at infinite dilution assumes
A.
Ions are paired
B.
Ionic interactions increase
C.
Ions move independently
D.
Ions are solvated
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ANSWER :
C. Ions move independently
10.
Kohlrausch’s law helps in the determination of

NEET - 2016

A.
Molar conductivity at infinite dilution of a strong electrolyte
B.
Molarity of electrolyte
C.
Cell constant
D.
Conductance of solution
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ANSWER :
A. Molar conductivity at infinite dilution of a strong electrolyte
11.
Λm increases with dilution because
A.
Ionic mobility increases
B.
Ion pairing increases
C.
Ion concentration increases
D.
Viscosity increases
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ANSWER :
A. Ionic mobility increases
12.
Which electrolyte follows Kohlrausch’s law best at infinite dilution?
A.
HCl
B.
CH₃COOH
C.
(NH₄)₂SO₄
D.
CaCl₂
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ANSWER :
A. HCl