Statement I | For \(\mathrm{Kl},\) molar conductivity increases steeply with dilution. |
Statement II | For carbonic acid, molar conductivity increases slowly with dilution. |
1. | Statement I is incorrect and Statement II is correct. |
2. | Both Statement I and Statement II are correct. |
3. | Both Statement I and Statement II are incorrect. |
4. | Statement I is correct and Statement II is incorrect. |
List-I | List-II | ||
(P) | ![]() |
(i) | Conductivity decreases and then increases. |
(Q) | ![]() |
(ii) | Conductivity decreases and then does not change much. |
(R) | ![]() |
(iii) | Conductivity increases and then does not change much. |
(S) | ![]() |
(iv) | Conductivity does not change much and then increases. |
P | Q | R | S | |
1. | (iii) | (iv) | (ii) | (i) |
2. | (iv) | (iii) | (ii) | (i) |
3. | (ii) | (iii) | (iv) | (i) |
4. | (i) | (iv) | (iii) | (ii) |
Assertion (A): | Molar conductivity increases with a decrease in concentration. |
Reason (R): | \(\Lambda_m=\Lambda_m^0-A c^{1 / 2}\) |
For strong electrolytes, Λm increases slowly with dilution and can be represented by the equation:
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
The decreasing order of electrical conductivity of the following aqueous solutions is :
0.1 M Formic acid (A),
0.1 M Acetic acid (B),
0.1 M Benzoic acid (C)
1. A > B > C
2. A > C > B
3. C > B > A
4. C > A > B
1. | It is independent of the solvent viscosity |
2. | It depends on the size of the ions and their solvation |
3. | It increases with the increase in electrolyte concentration |
4. | It increases with the increase in temperature |