Electrolytic and Metallic Conduction NEET Questions

Physical Chemistry - Redox Reactions and Electrochemistry

Electrolytic and Metallic Conduction MCQ Questions


1.
Which of the following statements correctly distinguishes electrolytic conduction from metallic conduction?
A.
In electrolytic conduction, electrons move through the solution; in metallic conduction, ions migrate.
B.
In both types, free electrons are the sole charge carriers.
C.
Both types of conduction involve transfer of matter through the conductor.
D.
In electrolytic conduction, ions carry the charge; in metallic conduction, free electrons carry the charge.
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ANSWER :
D. In electrolytic conduction, ions carry the charge; in metallic conduction, free electrons carry the charge.
2.
The SI unit of specific conductance (conductivity) is:
A.
S m² mol⁻¹
B.
S cm⁻¹
C.
Ω cm
D.
S m⁻¹
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ANSWER :
D. S m⁻¹
3.
With increase in temperature, the conductance of a metallic conductor:
A.
Decreases
B.
Increases
C.
First increases then decreases
D.
Remains unchanged
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ANSWER :
A. Decreases
4.
With rise in temperature, the conductance of an electrolytic solution:
A.
Decreases
B.
Remains constant
C.
First decreases then increases
D.
Increases
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ANSWER :
D. Increases
5.
Specific conductance of an electrolyte solution is given by which of the following relations?
A.
κ = R × (A/l)
B.
κ = (1/R) × (l/A)
C.
κ = (1/R) × (A/l)
D.
κ = R × (l/A)
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ANSWER :
B. κ = (1/R) × (l/A)
6.
The cell constant of a conductivity cell has the unit:
A.
S m⁻¹
B.
m
C.
m⁻¹
D.
m²
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ANSWER :
C. m⁻¹