Molar Conductivities and their Variation with Concentration NEET Questions

Physical Chemistry - Redox Reactions and Electrochemistry

Molar Conductivities and their Variation with Concentration MCQ Questions


1.
Molar conductivity increases with
A.
Decrease in concentration
B.
Increase in temperature
C.
Increase in pressure
D.
None of these
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ANSWER :
A. Decrease in concentration
2.
Which of the following shows highest molar conductivity at infinite dilution?
A.
NaCl
B.
KCl
C.
CaCl₂
D.
AlCl₃
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ANSWER :
B. KCl
3.
Molar conductivity is defined as
A.
Conductivity x cell constant
B.
Conductivity / concentration
C.
Specific conductivity x volume of solution
D.
None of these
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ANSWER :
C. Specific conductivity x volume of solution
4.
The unit of molar conductivity is
A.
S cm mol⁻¹
B.
S m² mol⁻¹
C.
S cm² mol⁻¹
D.
S mol cm⁻¹
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ANSWER :
C. S cm² mol⁻¹
5.
On dilution, molar conductivity
A.
Decreases
B.
Increases
C.
Remains same
D.
Becomes zero
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ANSWER :
B. Increases
6.
For strong electrolytes, Λm vs √c plot is
A.
A straight line
B.
Parabola
C.
Hyperbola
D.
Circle
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ANSWER :
A. A straight line