| 1 |
Which pair of compound are isomorphic in nature. |
- A. NaCl and KNO3
- B. KNO3 and MgO
- C. MgO and NaF
- D. CaF and CaCO3
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| 2 |
The repulsion of electronic clouds of the molecules are responsible for the attractive forces among the molecules. These forces are |
- A. Dipole-induced dipole forces
- B. Ion-dipole forces
- C. Instantaneous dipole-induced dipole forces
- D. Dipole-dipole forces
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| 3 |
In order to mention the B.P of water at 110 <sup>o</sup>C the external pressure should be. |
- A. Between 760 torr and 1200 torr
- B. Between 200 torr and 760 torr
- C. 765 torr
- D. Any value of pressure
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| 4 |
Acetone and chloroform are soluble in each other due to |
- A. Intermolecualr hydrogen bonding
- B. Dipole-dipole interaction
- C. Instantaneous dipoles
- D. All of the above
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| 5 |
Vapour pressure of a substance does not depend upon. |
- A. Temperature
- B. Intermolecular forces
- C. Surface area
- D. Physical state of water
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| 6 |
Diamond is a bad conductor of electricity because |
- A. It has a tight structure
- B. It has a high density
- C. There are no free electrons present in the crystal of diamond to conduct electronics
- D. None of these
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| 7 |
Select the correct answer out of the following alternative suggestions London dispersion forces are the only forces present among the. |
- A. Molecules of water in liquid state
- B. Atoms of helium is gaseous state at high temperature.
- C. Molecules of solid I2
- D. Molecule of H-Cl gas
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| 8 |
In which , case particles are separated from each other. |
- A. Fusion
- B. Condensation
- C. Neutralizations
- D. Vaporization
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| 9 |
London dispersion forces are the only forces present among the |
- A. Molecules of water in liquid state
- B. Atoms of helium in gaseous state at high temperature
- C. Molecules of solid iodine
- D. Molecules of hydrogen chloride gas
|
| 10 |
Boiling point of a liquid is high when |
- A. There is no hydrogen bonding
- B. Dipole moment is zero
- C. Inter molecular forces are weak
- D. Hydrogen bonding is present
|