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Q. No.Intermolecular forces are forces of attraction and repulsion between interacting particles that will be:
Choose the most appropriate answer from the options given below:
1. A, C, D, E are correct
2. B, C, D, E are correct
3. A, B, C, D, E are correct
4. A, B, C, E are correct
| A. | dipole - dipole forces |
| B. | dipole-induced dipole forces |
| C. | hydrogen bonding |
| D. | covalent bonding |
| E. | dispersion forces |
1. A, C, D, E are correct
2. B, C, D, E are correct
3. A, B, C, D, E are correct
4. A, B, C, E are correct
Subtopic: Introduction to States of Matter |
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Which amongst the following options is correct graphical representation of Boyle's Law?
| 1. |  |
2. |  |
| 3. |  |
4. | - |
Subtopic: Gas Laws |
56%
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The correct van der Waals equation for 1 mole of a real gas is:
1. \((P+{a \over V^2})(V-b) =RT\)
2. \((P+{V^2 \over a})(V-b) =RT\)
3. \((P+{an^2 \over V^2})(V^2-nb) =RT\)
4. \((P+{an^2 \over V})(V-nb) =nRT\)
1. \((P+{a \over V^2})(V-b) =RT\)
2. \((P+{V^2 \over a})(V-b) =RT\)
3. \((P+{an^2 \over V^2})(V^2-nb) =RT\)
4. \((P+{an^2 \over V})(V-nb) =nRT\)
Subtopic: van der Waal’s Correction |
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The correct option in which the density of argon (Atomic mass =40) is highest:
| 1. | STP | 2. | 0°C, 2 atm |
| 3. | 0°C, 4 atm | 4. | 273°C, 4 atm |
Subtopic: Gas Laws |
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Which one is not the correct mathematical equation for Dalton's Law of partial pressure?
(Here p = total pressure of a gaseous mixture)
(Here p = total pressure of a gaseous mixture)
| 1. | \(p_i=\chi_ip^o_i,\) where \(\chi_i=\) mole fraction of \(i^\text{th}\) gas in a gaseous mixture \(p_{i}^{o}=\) pressure of \(i^\text{th}\) gas in a pure state |
| 2. | \(\mathrm{p}=\mathrm{p}_{1}+\mathrm{p}_{2}+\mathrm{p}_{3} \) |
| 3. | \(\mathrm{p}=\mathrm{n}_{1} \frac{\mathrm{RT}}{\mathrm{V}}+\mathrm{n}_{2} \frac{\mathrm{RT}}{\mathrm{V}}+\mathrm{n}_{3} \frac{\mathrm{RT}}{\mathrm{V}}\) |
| 4. | \(\mathrm{p}_{i}=\chi_{i} \mathrm{p} \), where \(\mathrm{p}_{i}=\) partial pressure of \(i^\text{th}\) gas \(\chi_i=\) mole fraction of \(i^\text{th}\) gas in a gaseous mixture |
Subtopic: Dalton's Law |
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A 10.0 L flask contains 64 g of oxygen at 27°C. (Assume \(O_2\) gas is behaving ideally). The pressure inside the flask in the bar is:
(Given R = 0.0831 L bar K-1 mol-1)
1. 4.9
2. 2.5
3. 498.6
4. 49.8
(Given R = 0.0831 L bar K-1 mol-1)
1. 4.9
2. 2.5
3. 498.6
4. 49.8
Subtopic: Ideal Gas Law |
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Which of the following is not correct about postulates of the kinetic molecular theory of gases?
| 1 . | Pressure of the gas is due to the collision of molecules against the walls of the container. |
| 2. | Volume of the gas is due to the large number of molecules of the gas. |
| 3. | Average kinetic energy of molecules is directly proportional to the absolute temperature of the gas. |
| 4. | The molecules move randomly with different speeds in different directions. |
Subtopic: Kinetic Theory of Gas |
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At 300 K, 250 mL of gas A at 1 bar pressure is mixed with 500 mL of a gas B at 2 Bar pressure in a 1.0 L flask. Gas A does not react with gas B. The final pressure of the mixture is-
1. 1.00 bar
2. 2.15 bar
3. 2.50 bar
4. 1.25 bar
Subtopic: Dalton's Law |
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Four gas cylinders containing He, N2, CO2, and NH3 gases, separately, are gradually cooled from a temperature of 500 K. Which gas will liquify first?
(Given TC in K – He : 5.3, N2 : 126, CO2 : 304.1 and NH3 : 405.5)
1. He
2. N2
3. CO2
4. NH3
(Given TC in K – He : 5.3, N2 : 126, CO2 : 304.1 and NH3 : 405.5)
1. He
2. N2
3. CO2
4. NH3
Subtopic: Liquefaction of Gases & Liquid |
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A vessel contains 3.2 g of dioxygen gas at STP (273.15 K and 1 atm pressure). The gas is now transferred to another vessel at a constant temperature, where pressure becomes one-third of the original pressure. The volume of the new vessel in L is:
(Given - molar volume at STP is 22.4 L)
1. 6.72
2. 2.24
3. 22.4
4. 67.2
(Given - molar volume at STP is 22.4 L)
1. 6.72
2. 2.24
3. 22.4
4. 67.2
Subtopic: Gas Laws |
51%
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NEET - 2022
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