Assertion (A): | 0.1 M solution of glucose has the same decrement in the freezing point as 0.1 M solution of urea. |
Reason (R): | Kf for both has the same value. |
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 and (R) is False. |
4. | (A) and (R) both are False. |
Assertion (A): | The addition of ethylene glycol to water lowers the freezing point of water, therefore, it is used as an antifreeze substance. |
Reason (R): | Ethylene glycol is soluble in water. |
1. | Both (A) and (R) are correct and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are correct but (R) is not the correct explanation of (A). |
3. | (A) is True and (R) is False. |
4. | (A) is False and (R) is True. |
Column I | Column II |
A. Rate constant (k) of a second-order reaction | I. m3mol-1 |
B. Cryoscopic constant (Kf) | II. mol-1L s-1 |
C. Van der Waals constant (b) | III. No units |
D. Compressibility factor (Z) | IV. kg K mol-1 |
Options: | (A) | (B) | (C) | (D) |
1. | II | IV | I | III |
2. | III | IV | II | I |
3. | II | III | IV | I |
4. | IV | I | II | III |