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Q. No.

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 |
 74%
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 |
 93%
Level 1: 80%+
Hints
Given below are statements:
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 |
 67%
Level 2: 60%+
Hints
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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
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.
 
Subtopic:  Van’t Hoff Factor |
 56%
Level 3: 35%-60%
Hints
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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 |
 59%
Level 3: 35%-60%
Hints
Match List-I with List-II:
List-I
(Types of Solutions)		 List-II
(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 
 
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 |
 85%
Level 1: 80%+
Hints
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Given below are two statements:
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 true. 
Subtopic:  Concentration Terms & Henry's Law |
 81%
Level 1: 80%+
Hints
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