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Test: Colligative Properties (Osmotic Pressure) - NEET MCQ


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20 Questions MCQ Test Topic-wise MCQ Tests for NEET - Test: Colligative Properties (Osmotic Pressure)

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Test: Colligative Properties (Osmotic Pressure) - Question 1

Only One Option Correct Type
This section contains 17 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct
Q. 
Osmosis is involved in one or more processes.
I. Excretion of urine
II. Reverse osmosis
III. Evaporation
IV. Interchange of nutrients and waste products between tissue cells and their surroundings.
Select the correct processes.

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 1

I. Excretion of urine.
II. Reverse osmosis is used in desalination of sea water.
IV. Interchange of nutrients and waste products between tissue cells and their surroundings.
These are the processes involving osmosis.

Test: Colligative Properties (Osmotic Pressure) - Question 2

Osmotic pressure of insulin solution at 298 K is found to be 0.0072 atm at 298 K. Hence, height of water column due to this pressure is (density of mercury = 13.6 g mL-1)

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 2

(c) Pressure (due to insulin) = 0.0072 atm

= 0.0072 x 76 cm of Hg

= 0.0072 x 76 x 13.6 cm of Hg column

Height of water column = h cm

∴ p = h x 1 cm of water column

(Density of water = 1 g mL-1)

∴ h x 1 = 0.0072 x 76 x 13.6 = 7.44 cm

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Test: Colligative Properties (Osmotic Pressure) - Question 3

Which has maximum osmotic pressure at temperature T K?

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 3

Test: Colligative Properties (Osmotic Pressure) - Question 4

There is formation of Prussian blue when Fe3+ reacts with [Fe(CN)6]4-. Two solutions as shown are separated by a semipermeable membrane AB. Due to osmosis, there is

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 4

Side X (0.1 M)            Side Y (0.01 M)

     (Concentrated)              (Dilute)

There is osmosis of solvent (H20) from dilute solution (Y) to concentrated solution (X). There is no osmosis of ions, hence no blue colour formation.

Test: Colligative Properties (Osmotic Pressure) - Question 5

Three solutions of following in water are isothermal conditions as given:

Thus,

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 5

Test: Colligative Properties (Osmotic Pressure) - Question 6

What will be the ratio of the masses of formalin (HCHO) and glucose (C6H1206) contained in equal volumes of solutions having the same osmotic pressure at the given temperature?

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 6

Test: Colligative Properties (Osmotic Pressure) - Question 7

A solution containing 0.4 g of a non-volatile solute in 0.1 dm3 of the solution exerts an osmotic pressure of 66.66 kPa at 300 K. Thus, molar mass of the solute is

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 7

Test: Colligative Properties (Osmotic Pressure) - Question 8

For a dilute aqueous solution, density is 1 .00 g cm3 and g (acceleration due to gravity) is 10.0 ms-2. Then, osmotic pressure set up at highest of 0.17 m is

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 8

(c

At a column of height h.
Osm otic pressure π = pgh = density x g x h Density, ρ = 1g cm-3

Test: Colligative Properties (Osmotic Pressure) - Question 9

Sea water is approximately 0.70 M in NaCI. It can be desalinated by reverse osmosis. For 50% recovery, additional osmotic pressure required (on sea water side) at 298 K is

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 9

Test: Colligative Properties (Osmotic Pressure) - Question 10

A 5% solution of cane sugar (molar mass = 342 g mol-1) is isotonic with 1 % of a solution of an unknown non-electrolyte solute at 300 K. The molar mass of unknown solute is (in g mol-1)   [Aieee 2011]

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 10

Test: Colligative Properties (Osmotic Pressure) - Question 11

5.25% solution of a substance is isotonic with a 21 .5% solution of urea (NH2CONH2 )by weight of solution in the same solvent at 300 K. If the densities of both the solutions are assumed to be equal to 1.0 g cm-3 then, molar mass of the substance will be

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 11

Test: Colligative Properties (Osmotic Pressure) - Question 12

Freezing point of a biological fluid is - 0.56° C in aqueous solution.Kf (H20) = 1 .86° mol-1 kg. Thus, its osmotic pressure at 310 K is (assume molarity = molality)

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 12

ΔTf = molality x Kf

0.56° = molality x 1,86° mol-1 kg

∴ Molarity = mol kg-1
or molarity = 0.301 mol L-1

Also, π = M RT= 0.301 x 0,0821 x 3 1 0 = 7.66 atm

Test: Colligative Properties (Osmotic Pressure) - Question 13

100 mL of a solution containing 0.4 g urea (NH2CONHand 0.9 g of another substance (X ) shows an osmotic pressure of 2.85 atm at 25° C. Molar mass of the substance (X)is

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 13

Test: Colligative Properties (Osmotic Pressure) - Question 14

A solution containing 1 g of glucose and 1 g of sucrose in 1 L solution is found to be isotonic with a solution containing 2 g of another unknown solute (X) in 1 L solution at 300 K. Thus, molar mass of the solute X is

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 14

Test: Colligative Properties (Osmotic Pressure) - Question 15

The vapour pressure of pure benzene at 353 K is 10.0268 x 104 Nm-2 and that of a solution containing non-volatile solute in benzene is 9.8960 x 104 Nm-2. (d of benzene = 8.149 x 102 g dm-3). Thus, osmotic pressure of the solution is

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 15

Test: Colligative Properties (Osmotic Pressure) - Question 16

Blood plasma has following composition,

and other ions. What is the osmotic pressure set up at 300 K due to Mg2+and   ions?

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 16

Test: Colligative Properties (Osmotic Pressure) - Question 17

Osmotic pressure of 3% aqueous solution of a non-volatile, non-electrolyte solute A at 25° C is 3.632 atm. Thus, its vapour pressure is (  at 25° C is 23.7 mm) (assume dilute solution)

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 17

Test: Colligative Properties (Osmotic Pressure) - Question 18

Statement Type
This section is based on Statement I and Statement II. Select the correct anser from the codes given below

Q. Statement I  : Osmotic pressure of 34.2% sucrose solution at 300 K is 30.0 atm.
Statement II : π = MRT is valid for dilute solution.

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 18

But, experimental value is 30.0 atm. This value is much higher than the theoretical value.
It is because (π = mRT) is valid for dilute solution.
Thus, both Statements I and II are correct and Statement II is the correct explanation of Statement I.

Test: Colligative Properties (Osmotic Pressure) - Question 19

Matching List Type
Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct

Q. Match the terms in Column I with the corresponding definition in Column II and select the answer from the codes given below.

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 19

(d) As per definition

Thus, (i) → (r), (ii) → (s), (iii) → (q), (iv) → (t), (v) → (p)

Test: Colligative Properties (Osmotic Pressure) - Question 20

Comprehension Type
This section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)

Passage

Consider the following arrangement in which a solution containing 20 g of haemoglobin in 1 L of the solution is placed in the right compartment and pure water is placed in the left compartment. At equilibrium, the height of the water in the right column is 77.8 mm in excess of the height of the solution in the left column at 298 K.

Q. Osmotic pressure of the solution is

Detailed Solution for Test: Colligative Properties (Osmotic Pressure) - Question 20

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