Select Chapter Topics:
Q. No.Given below are two statements:
| Assertion (A): | When methanol is added to water, the boiling point of water increases |
| Reason (R): | When a volatile solute is added to a volatile solvent, an elevation in boiling point is observed. |
| 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: Elevation of Boiling Point |
53%
Level 3: 35%-60%
Hints
| 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%
Hints
Unlock IMPORTANT QUESTION
This question was bookmarked by 5 NEET 2025 toppers during their NEETprep journey. Get Target Batch to see this question.
✨ Perfect for quick revision & accuracy boost
Buy Target Batch
Access all premium questions instantly
Assertion(A): The molecular weight of acetic acid determined by depression in the freezing point method in benzene and water was found to be different.
Reason(R): Water is polar and benzene is non-polar.
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.
Reason(R): Water is polar and benzene is non-polar.
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.
Subtopic: Van’t Hoff Factor |
56%
Level 3: 35%-60%
Hints
Unlock IMPORTANT QUESTION
This question was bookmarked by 5 NEET 2025 toppers during their NEETprep journey. Get Target Batch to see this question.
✨ Perfect for quick revision & accuracy boost
Buy Target Batch
Access all premium questions instantly
Given below are two statements:
| Assertion (A): | When an ideal binary solution is in equilibrium with its vapour, the molar ratio of the two components in the solution and in the vapour phase may or may not be the same. |
| Reason (R): | The vapour pressure of a solution depends upon the vapour pressures of volatile components. |
| 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: Raoult's Law |
56%
Level 3: 35%-60%
Hints
Consider the given two statements:
| Assertion (A): | Azeotropes have a different composition in liquid and vapour state. |
| Reason (R): | The composition in both the liquid and the vapour phase depends upon the volatility of the substance. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True and (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Azeotrope |
64%
Level 2: 60%+
Hints
Given below are two statements:
| Assertion (A): | An increase in surface area increases the rate of evaporation. |
| Reason (R): | Stronger the intermolecular attraction forces, faster the rate of evaporation at a given temperature. |
| 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. | (A) is False but (R) is True. |
Subtopic: Introduction & Colligative properties |
81%
Level 1: 80%+
Hints
Assertion(A): If a liquid solute more volatile than the solvent is added to the solution, the vapour pressure of the solution is greater than the vapour pressure of the pure solvent.
Reason(R): Vapour pressure of the solution is equal to the vapour pressure of the solvent.
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.
Reason(R): Vapour pressure of the solution is equal to the vapour pressure of the solvent.
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.
Subtopic: Raoult's Law |
71%
Level 2: 60%+
Hints
Unlock IMPORTANT QUESTION
This question was bookmarked by 5 NEET 2025 toppers during their NEETprep journey. Get Target Batch to see this question.
✨ Perfect for quick revision & accuracy boost
Buy Target Batch
Access all premium questions instantly
| 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
| Assertion (A): |
Osmosis is the movement of solvent molecules (e.g., water) across a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration. |
| Reason (R): | Solutions having the same osmotic pressure are called isotonic solutions. |
| 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. | (A) is False, but (R) is True. |
Subtopic: Osmosis & Osmotic Pressure |
72%
Level 2: 60%+
Hints
| Assertion (A): | When dry fruits and vegetables are placed in water, they slowly get swelled. |
| Reason (R): | It happens due to the phenomenon of osmosis. |
| 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. | (A) is false but (R) is true. |
Subtopic: Osmosis & Osmotic Pressure |
92%
Level 1: 80%+
Hints
Select Chapter Topics:
© 2025 GoodEd Technologies Pvt. Ltd.