- 1(current)
Q. No.| 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 but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Depression of Freezing Point |
Level 3: 35%-60%
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| Assertion (A): | Ethylene glycol acts as an antifreeze by lowering the freezing point of water. |
| Reason (R): | Ethylene glycol is soluble in water. |
| 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) is False and (R) is True. |
Subtopic: Depression of Freezing Point |
56%
Level 3: 35%-60%
Hints
Match the following physical constants in Column-I to their correct units given in Column-II:
Choose the correct code from the options given below:
| 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 |
Subtopic: Depression of Freezing Point |
81%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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