Test: Osmosis & Osmotic Pressure - NEET MCQ

# Test: Osmosis & Osmotic Pressure - NEET MCQ

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## 10 Questions MCQ Test Topic-wise MCQ Tests for NEET - Test: Osmosis & Osmotic Pressure

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Test: Osmosis & Osmotic Pressure - Question 1

### What is the osmotic pressure of a solution containing 3.42 g of cane sugar in 1litre solution at 27°C .Molar mass of cane sugar is 342 g.

Detailed Solution for Test: Osmosis & Osmotic Pressure - Question 1

The correct answer is Option A.
Π = (W / M * V) * R * T
Π = (3.42 / 345 * 1 L) * 300 K * 0.0821
= 0.02463 atm

Test: Osmosis & Osmotic Pressure - Question 2

### What is the effect of temperature on the osmotic pressure of solution?

Detailed Solution for Test: Osmosis & Osmotic Pressure - Question 2

The correct answer is option D
Osmotic pressure is calculated as:
π = CRT
where, π = Osmotic pressure
C = Concentration
R = Gas constant
T = Temperature.
It is evident from the equation that osmotic pressure is directly proportional to the temperature.

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Test: Osmosis & Osmotic Pressure - Question 3

### Which of the following colligative property can provide molar mass of proteins ( or polymers or colloids) with greater precision?

Detailed Solution for Test: Osmosis & Osmotic Pressure - Question 3

The correct answer is Option B.
Measurement of osmotic pressure provides a method to determine molar masses of solutes. This method is widely used to determine molar masses of proteins, polymers and other macromolecules.

Test: Osmosis & Osmotic Pressure - Question 4

Equal volume of 1 M urea and 1 M glucose are mixed. the mixture will have

Detailed Solution for Test: Osmosis & Osmotic Pressure - Question 4

The correct answer is option A
The mixture will have the same osmotic pressure as the two individual values.
πurea​=0.1×ST
πglucose​=0.1×ST
πmix​=(0.1ST+0.1ST) / 2​
=0.1ST

Test: Osmosis & Osmotic Pressure - Question 5

The process of movement of solvent through a semipermeable membrane from the solution to the pure solvent by applying excess pressure on the solution side is called

Detailed Solution for Test: Osmosis & Osmotic Pressure - Question 5

The correct answer is option D

The process of movement of solvent through a semipermeable membrane from the solution to the pure solvent by applying excess pressure on the solution side is called reverse osmosis.

Test: Osmosis & Osmotic Pressure - Question 6

The osmotic pressure of one molar solution at 0°C is

Test: Osmosis & Osmotic Pressure - Question 7

Which one of the following processes is used for desalination of sea water ?

Detailed Solution for Test: Osmosis & Osmotic Pressure - Question 7

The correct answer is Option C
Reverse osmosis also involves diffusion, making the process dependent on pressure, flow rate, and other conditions. Reverse osmosis is most commonly known for its use in drinking water purification from seawater, removing the salt and other effluent materials from the water molecules.

Test: Osmosis & Osmotic Pressure - Question 8

On lowering of temperature of solution, the rate of osmosis decreases because

Test: Osmosis & Osmotic Pressure - Question 9

The phenomenon of flow of solvent molecules through a semi permeable membrane from pure solvent to solution is called

Detailed Solution for Test: Osmosis & Osmotic Pressure - Question 9

The correct answer is Option B
Osmosis can be defined as the spontaneous movement of solvent molecules through a semipermeable membrane from a lower-concentration solution to a higher-concentration solution.

Test: Osmosis & Osmotic Pressure - Question 10

What is the molar mass of the non-electrolyte if 2 g of it when dissolved in 100 mL of solution has osmotic pressure of 0.1 atm at 27 °C?

Detailed Solution for Test: Osmosis & Osmotic Pressure - Question 10

The correct answer is option C
Osmotic pressure () = CRT =( W2 x R x T) / (M2 x V)
∴M2 = ( W2 x R x T) / ( x V)
= (2g x 0.082Latm/molk x 300k) /(0.1atm x 0.1L)
= 4920 g/mol
= 4.920 kg/ mol

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