A 100 mL water sample from a polluted lake contains 21.2 mg of Arsenic (As). The concentration of arsenic in ppm in the lake is: (Given: Density of water = 1 g/mL) 
1. 212000 ppm 2. 212 ppm 
3. 2120 ppm 4. 21.2 ppm
Subtopic:  Introduction & Colligative properties |
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The maximum amount of a solid solute that can be dissolved in a specified amount of a given liquid solvent does not depend upon:

1. Temperature 2. Nature of solute
3. Pressure 4. Nature of solvent
Subtopic:  Introduction & Colligative properties |
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Match List-I with List-II 
List-I
(Reagent)
List-II
(Name of the reaction)
A.  \(Liquid \rightleftharpoons Vapour\) I.  Melting point
B.  \(Solid \rightleftharpoons Liquid\) II. Boiling point 
C.  \(Solid \rightleftharpoons Vapour\) III. Sublimation point
D.  \(\small {Solute (solid) \rightleftharpoons Solute (solution)}\) IV.  Saturated solution 
V.  Unsaturated solution 
Choose the correct answer from the options given below:
1. A-II, B-I, C-III, D-IV
2. A-I, B-II, C-III, D-IV
3. A-III, B-II, C-I, D-IV
4. A-II, B-I, C-III, D-V
Subtopic:  Introduction & Colligative properties |
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A beaker contains a solution of substance 'A'. Precipitation of substance ‘A’ takes place when a small amount of 'A' is added to the solution. The solution is:

1. Saturated. 2. Supersaturated.
3. Unsaturated. 4. Concentrated.
Subtopic:  Introduction & Colligative properties |
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Colligative properties are dependent on which of the following factors?

1. The nature of the solute particles dissolved in the solution.
2. The number of solute particles in the solution.
3. The physical properties of the solute particles dissolved in the solution.
4. The nature of solvent particles.

Subtopic:  Introduction & Colligative properties |
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Relative lowering of vapor pressure is a colligative property because:

(a) It depends on the concentration of a non-electrolyte solute in a solution and does not depend on the nature of the solute molecules
(b) It depends on the number of particles of electrolyte solute in a solution and does not depend on the nature of the solute particles
(c) It depends on the concentration of a non-electrolyte solute in solution as well as on the nature of the solute molecules
(d) It depends on the concentration of an electrolyte or non-electrolyte solute in solution as well as on the nature of solute molecules


The correct choice among the given is:

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, d)

Subtopic:  Introduction & Colligative properties |
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Colligative properties are observed when:

(a) A non-volatile solid is dissolved in a volatile liquid
(b) A non-volatile liquid is dissolved in another volatile liquid
(c) A gas is dissolved in a non-volatile liquid
(d) A volatile liquid is dissolved in another volatile liquid


1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Subtopic:  Introduction & Colligative properties |
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Isotonic solutions must have the same:

(a) Solute
(b) Density
(c) Elevation in boiling point
(d) Depression in freezing point

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, d)

Subtopic:  Introduction & Colligative properties | Osmosis & Osmotic Pressure |
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The correct match for the below table is:
Type of solution  Example
a. Solid in gas i. Aerated water
b. Gas in liquid  ii. Smoke
c. Liquid in solid iii. Solution of hydrogen in palladium 
d. Gas in solid iv. Amalgams
   
a b c d
1. i iii iv ii
2. ii i iv iii
3. iii i iv ii
4. iv i ii iii
Subtopic:  Introduction & Colligative properties |
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The example of gas in a solid type solution is:

1. Solution of hydrogen in palladium.

2. Ethanol dissolved in water.

3. Camphor vapours in N2 gas.

4. Amalgams.

Subtopic:  Introduction & Colligative properties |
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