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
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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
| 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. |
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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
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
1. \(0.09~M\)
2. \(0.04~M\)
3. \(0.01~M\)
4. \(0.06~M\)
| 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 |
1. 300
2. 600
3. 900
4. 200
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
| 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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