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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 |
54%
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NEET - 2023
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The correct van der Waals equation for 1 mole of a real gas is:
1. (P+aV2)(V−b)=RT
2. (P+V2a)(V−b)=RT
3. (P+an2V2)(V2−nb)=RT
4. (P+an2V)(V−nb)=nRT
1. (P+aV2)(V−b)=RT
2. (P+V2a)(V−b)=RT
3. (P+an2V2)(V2−nb)=RT
4. (P+an2V)(V−nb)=nRT
Subtopic: van der Waal’s Correction |
54%
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NEET - 2023
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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 |
58%
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NEET - 2023
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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. | pi=χipoi, where χi= mole fraction of ith gas in a gaseous mixture poi= pressure of ith gas in a pure state |
| 2. | p=p1+p2+p3 |
| 3. | p=n1RTV+n2RTV+n3RTV |
| 4. | pi=χip, where pi= partial pressure of ith gas χi= mole fraction of ith gas in a gaseous mixture |
Subtopic: Dalton's Law |
57%
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NEET - 2022
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A 10.0 L flask contains 64 g of oxygen at 27°C. (Assume O2 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 |
72%
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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 |
69%
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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 |
65%
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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 |
75%
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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 |
50%
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