Electrolytic and Metallic Conduction NEET Questions

Physical Chemistry - Redox Reactions and Electrochemistry

Electrolytic and Metallic Conduction MCQ Questions


7.
Molar conductivity (Λₘ) is related to specific conductance (κ) and molar concentration (c, in mol m⁻³) by:
A.
Λₘ = κ/c
B.
Λₘ = κ × c²
C.
Λₘ = c/κ
D.
Λₘ = κ × c
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ANSWER :
A. Λₘ = κ/c
8.
The unit of molar conductivity is:
A.
S² m mol⁻¹
B.
S cm⁻¹
C.
S m⁻¹
D.
S m² mol⁻¹
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ANSWER :
D. S m² mol⁻¹
9.
Which one of the following is NOT a strong electrolyte?
A.
HCl
B.
CH₃COOH
C.
KOH
D.
NaCl
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ANSWER :
B. CH₃COOH
10.
On dilution, the specific conductance (κ) of an electrolyte solution:
A.
Decreases
B.
Remains constant
C.
First increases then decreases
D.
Increases
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ANSWER :
A. Decreases
11.
On dilution, the molar conductivity (Λₘ) of an electrolyte:
A.
Remains constant
B.
Decreases
C.
Increases for strong but decreases for weak electrolytes
D.
Increases
😑 View Answer Rough Work Error
ANSWER :
D. Increases
12.
Kohlrausch's law of independent migration of ions states that:
A.
The conductance of an electrolyte is independent of the nature of ions present.
B.
All ions have equal mobility at infinite dilution.
C.
The molar conductivity at any concentration equals the sum of contributions from cation and anion.
D.
The limiting molar conductivity of an electrolyte is the sum of the individual contributions of its cation and anion at infinite dilution.
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ANSWER :
D. The limiting molar conductivity of an electrolyte is the sum of the individual contributions of its cation and anion at infinite dilution.