The molar conductance of a solution, given its conductivity (0.248 S m–1) and concentration (0.2 mol m–3) is:
1. 0.124 S cm2 mol–1 2. 1.24 S m2 mol–1
3. 124 S cm2 mol–1 4. 124 S m2 mol–1
Subtopic:  Conductance & Conductivity |
Level 3: 35%-60%
NEET - 2023
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The molar conductance of an electrolyte increases with dilution according to the equation: 
\(\Lambda_{\mathrm{m}}=\Lambda_{\mathrm{m}}^{\circ}-\mathrm{A} \sqrt{\mathrm{c}} \)
Consider the following four statements:
A: This equation applies to both strong and weak electrolytes
B: The value of the constant A depends upon the nature of the solvent 
C: The value of constant A is the same for both \(BaCl_2\) and \(MgSO_4\)
D: The value of constant A is the same for both \(BaCl_2\) and \(Mg(OH)_2\)

Which of the above statements are correct? 
1. (A) and (B) only  2. (A), (B), and (C) only 
3. (B) and (C) only  4. (B) and (D) only 
Subtopic:  Conductance & Conductivity |
 58%
Level 3: 35%-60%
NEET - 2023
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The specific conductance of a 0.1 M KCl solution at 23°C is 0.012 Ω-1cm-1.
The resistance of the cell containing the solution at the same temperature was found to be 55 Ω. The cell constant will be:

1. 0.142 cm–1
2. 0.66 cm–1
3. 0.918 cm–1
4. 1.12 cm–1

Subtopic:  Conductance & Conductivity |
 90%
Level 1: 80%+
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The k= 4.95 × 10-5S cm-1 for a 0.00099 M solution. The reciprocal of the degree of dissociation of acetic acid, if ∧m0 for acetic acid is 400 S cm2mol-1 will be:

1. 7 2. 8
3. 9 4. 10
Subtopic:  Conductance & Conductivity |
 82%
Level 1: 80%+
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The conductivity of 0.20 M solution of KCl at 298 K is 0.0248 S cm–1. The molar conductivity will be:

1. 124 S cm2 mol-1 2. 134 S cm2 mol-1
3. 128 S cm2 mol-1 4. 136 S cm2 mol-1
Subtopic:  Conductance & Conductivity |
 90%
Level 1: 80%+
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The molar conductivity of a 0.5 mol/dm3 solution of AgNO3 with electrolytic conductivity of 5.76 × 10–3 S cm–1 at 298 K is:

1. 11.5 S cm2/mol 2. 21.5 S cm2/mol
3. 31.5 S cm2/mol 4. 41.5 S cm2/mol
Subtopic:  Conductance & Conductivity |
 88%
Level 1: 80%+
NEET - 2016
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The unit of specific conductance is:

1. ohm-1 cm-1 2. ohm cm
3. ohm cm-1 4. ohm-1 cm
Subtopic:  Conductance & Conductivity |
 83%
Level 1: 80%+
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Which of the following statements is correct regarding the cell constant of a conductivity cell?

1. Changes with the change of electrolyte.
2. Changes with the change of concentration of electrolyte.
3. Changes with the temperature of the electrolyte.
4. Remains constant for a cell.

Subtopic:  Conductance & Conductivity |
 83%
Level 1: 80%+
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Consider the following graph.

 

The strong electrolyte in the above graph is represented by:

1. X

2. Y

3. Both X and Y

4. Data given is not sufficient to predict.

Subtopic:  Conductance & Conductivity |
 86%
Level 1: 80%+
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At 25 °C molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is 9.54 Ω-1 cm2 mol-1 and at infinite dilution its molar conductance is 238 Ω-1 cm2 mol-1. The degree of ionisation of ammonium hydroxide at the same concentration and temperature is :

1. 2.080 % 2. 20.800 %
3. 4.008 % 4. 40.800 %
Subtopic:  Conductance & Conductivity |
 78%
Level 2: 60%+
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