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Q. No.
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 |
 55%
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
Match the following physical constants in Column-I to their correct units given in Column-II: 
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
Choose the correct code from the options given below: 
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 |
 80%
Level 1: 80%+
Hints
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