Q. No.A solution having osmotic pressure nearer to that of an equimolar solution of K4[Fe(CN)6] is-
1. Na2SO4
2. BaCl2
3. Al2(SO4)3
4. C12H22O11
Subtopic: Osmosis & Osmotic Pressure |
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Two solutions are said to be isotonic if they have the same:
1. Vapor pressure
2. Freezing temperature
3. Osmotic pressure
4. Boiling temperature
Subtopic: Osmosis & Osmotic Pressure |
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| 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 |
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A 5% (w/v) solution of cane sugar (molar mass 342) is isotonic with 1% (w/v) of a solution of an unknown solute. The molar mass of an unknown solute in g/mol is:
1. 171.2
2. 68.4
3. 34.2
4. 136.2
Subtopic: Osmosis & Osmotic Pressure |
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2.56 g of a non-electrolyte solute is dissolved to prepare 1 litre of solution.
The osmotic pressure of the solution is 4 bar at 300 K.
Calculate the molar mass of the compound.
(Given, R = 0.083 bar, round off to the nearest integer)
1. 20 g
2. 16 g
3. 12 g
4. 22 g
The osmotic pressure of the solution is 4 bar at 300 K.
Calculate the molar mass of the compound.
(Given, R = 0.083 bar, round off to the nearest integer)
1. 20 g
2. 16 g
3. 12 g
4. 22 g
Subtopic: Osmosis & Osmotic Pressure |
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\(0.2~M\) aqueous solution of glucose has osmotic pressure \(4.9~atm\) at \(300~K.\) What is the concentration of glucose if it has osmotic pressure \(1.5~atm\) at the same temperature?
1. \(0.09~M\)
2. \(0.04~M\)
3. \(0.01~M\)
4. \(0.06~M\)
1. \(0.09~M\)
2. \(0.04~M\)
3. \(0.01~M\)
4. \(0.06~M\)
Subtopic: Osmosis & Osmotic Pressure |
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Consider the given two statements:
| Assertion (A): | Osmosis does not take place in two isotonic solutions separated by semi-permeable membrane. |
| Reason (R): | Isotonic solutions have the same osmotic pressure. |
| 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: Osmosis & Osmotic Pressure |
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A 0.5 g/L solution of glucose is found to be isotonic with a 2.5 g/L solution of an organic compound. What will be the molecular weight of that organic compound?
1. 300
2. 600
3. 900
4. 200
1. 300
2. 600
3. 900
4. 200
Subtopic: Osmosis & Osmotic Pressure |
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At the same temperature, which of the following pair of solutions is isotonic?
1. 0.2 M BaCl2 and 0.2 M urea
2. 0.1 M glucose and 0.2 M urea
3. 0.1 M NaCl and 0.1 M K2SO4
4. 0.1 M Ba(NO3)2 and 0.1 M Na2SO4
Subtopic: Osmosis & Osmotic Pressure |
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What is the correct sequence of osmotic pressure for 0.01 M aqueous solutions of the following compounds?
1. \(\pi_d>\pi_b>\pi_c>\pi_a\)
2. \(\pi_c>\pi_d>\pi_b>\pi_a\)
3. \(\pi_c>\pi_d>\pi_a>\pi_b\)
4. \(\pi_a>\pi_b>\pi_c>\pi_d\)
| a. | \(\mathrm{Al}_2\left(\mathrm{SO}_4\right)_3\) | b. | \(\mathrm{Na}_3 \mathrm{PO}_4\) |
| c. | \(\mathrm{BaCl}_2\) | d. | Glucose |
1. \(\pi_d>\pi_b>\pi_c>\pi_a\)
2. \(\pi_c>\pi_d>\pi_b>\pi_a\)
3. \(\pi_c>\pi_d>\pi_a>\pi_b\)
4. \(\pi_a>\pi_b>\pi_c>\pi_d\)
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