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Q. No.
Assertion (A):
Osmosis involves the movement of solvent molecules from a lower-concentration solution to a higher concentration solution.
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 |
66%
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| 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%
From NCERT
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| Assertion (A): | Henry's law states that “the partial pressure of the gas in vapour phase (p) is proportional to the mole fraction of the gas (x) in the solution” |
| Reason (R): | Raoult's law is a special case of Henry's law. |
| 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: Raoult's Law |
66%
From NCERT
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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 and R is false.
4. A and R both are false.
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 and R is false.
4. A and R both are false.
Subtopic: Elevation of Boiling Point |
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| 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. |
Subtopic: Depression of Freezing Point |
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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%
From NCERT
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Assertion(A): When an ideal binary solution is in equilibrium with its vapour, molar ratio of the two components in the solution and in the vapour phase may or may not be the same.
Reason(R): Vapour pressure of 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 and R is false.
4. A and R both are false.
Reason(R): Vapour pressure of 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 and R is false.
4. A and R both are false.
Subtopic: Raoult's Law |
54%
From NCERT
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Assertion(A): Azeotropes have a different composition in liquid and vapour state.
Reason(R): Composition in both, the liquid and in 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 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): Composition in both, the liquid and in 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 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: Azeotrope |
60%
From NCERT
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Match List I with List II
Choose the correct answer from the options given below:
| List I | List II |
| Types of Solutions | Common Examples |
| A. Gas in Gas | I. Solution of hydrogen in palladium |
| B. Solid in Gas | II. Mixture of oxygen and nitrogen gas |
| C. Gas in Liquid | III. Camphor in nitrogen gas |
| D. Gas in Solid | IV. Oxygen dissolved in water |
Choose the correct answer from the options given below:
| Options: | A | B | C | D |
| 1. | II | III | IV | I |
| 2. | II | I | IV | III |
| 3. | II | IV | III | I |
| 4. | II | IV | I | III |
Subtopic: Introduction & Colligative properties |
86%
From NCERT
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Given below are two statements:
In light of the above statements, choose the correct answer from the options given below:
| Statement I: | The mass of a gas dissolved in a given mass of a solvent at any temperature is proportional to the pressure of the gas above the solvent. |
| Statement II: | The rate of dissolution of sugar is equal to the rate of crystallization of sugar at equilibrium. |
In light of the above statements, choose the correct answer from the options given below:
| 1. | Both statement I and statement II are true. |
| 2. | Both statement I and statement II are false. |
| 3. | Statement I is true but statement II is false. |
| 4. | Statement I is false but statement II is false. |
Subtopic: Concentration Terms & Henry's Law |
82%
From NCERT
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