- 1(current)
Q. No.Consider the following statements about the composition of the vapour over an ideal 1:1 molar mixture of benzene and toluene. The correct statement is:
Assume that the temperature is constant at 25 oC.
(Given, vapour pressure data at 25 °C, benzene = 12.8 kPa, toluene = 3.85 kPa)
| 1. | The vapour will contain a higher percentage of toluene. |
| 2. | The vapour will contain equal amounts of benzene and toluene. |
| 3. | Not enough information is given to make a prediction. |
| 4. | The vapour will contain a higher percentage of benzene. |
Subtopic: Introduction & Colligative properties |
63%
From NCERT
NEET - 2016
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
For an ideal solution, the non-zero value will be for:
1. \(\Delta H_{mix}\)
2. \(\Delta S_{mix}\)
3. \(\Delta V_{mix}\)
4. \(\Delta P=P_{\text{observed}}-P_{\text{Raoult}}\)
1. \(\Delta H_{mix}\)
2. \(\Delta S_{mix}\)
3. \(\Delta V_{mix}\)
4. \(\Delta P=P_{\text{observed}}-P_{\text{Raoult}}\)
Subtopic: Introduction & Colligative properties |
84%
From NCERT
NEET - 2015
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
The electrolyte having the same value of Van't Hoff factor (i) as that of Al2(SO4)3 (if all are 100% ionized) is:
1. K2SO4
2. K3[Fe(CN)6]
3. Al(NO3)3
4. K4[Fe(CN)6]
Subtopic: Introduction & Colligative properties | Van’t Hoff Factor |
85%
From NCERT
NEET - 2015
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
A solution containing 10 g/dm3 of urea (molecular mass = 60 g mol-1) is isotonic with a 5 % solution of a non-volatile solute. The molecular mass of this non-volatile solute is:
| 1. | 25 g mol-1 | 2. | 300 g mol-1 |
| 3. | 350 g mol-1 | 4. | 200 g mol-1 |
Subtopic: Introduction & Colligative properties |
82%
From NCERT
AIPMT - 2006
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Beans get cooked earlier in a pressure cooker, because:
| 1. | The boiling point increases with increasing pressure |
| 2. | The boiling point decreases with increasing pressure |
| 3. | The extra pressure of the pressure cooker softens the beans |
| 4. | Internal energy is not lost while cooking in a pressure cooker |
Subtopic: Introduction & Colligative properties |
54%
From NCERT
AIPMT - 2001
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints
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NEET 2023 - Target Batch - Aryan Raj Singh
- 1(current)
Q. No.
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