| 1 |
NH<sub>3</sub>shows a maximum boiling point among the hydrides of V-A group elements due to |
- A. Very small size of nitrogen
- B. Lone pair electrons present on Nitrogen
- C. Enhanced electronegative character of Nitrogen
- D. Pyramidla structure of NH<sub>3</sub>
|
| 2 |
The molecule of CO2 in dry ice form the. |
- A. Ionic crystals
- B. Covalent crystals
- C. Molecular crystals
- D. Any type of crystals
|
| 3 |
In triclinic unit cell |
- A. All axial lengths are equal
- B. All internals lengths and angles are equal
- C. Both axial lengths and angles are equal
- D. Both axial lengths and angles are unequal
|
| 4 |
Which pair of compound are isomorphic in nature. |
- A. NaCl and KNO3
- B. KNO3 and MgO
- C. MgO and NaF
- D. CaF and CaCO3
|
| 5 |
The molecules of CO<sub>2</sub>in dry ice form the |
- A. Ionic crystal
- B. Covalent crystals
- C. Molecular crystals
- D. Any type of crystals
|
| 6 |
Which one of the following substances is not amorphous |
- A. Polymer
- B. Rubber
- C. Glass
- D. AgNO<sub>3</sub>
|
| 7 |
NH3 shows a maximum boiling point among the hydrides of V-A group elements due to. |
- A. Very small size of nitrogen
- B. Lone pair of electron present on nitrogen
- C. enhanced electronegative character of nitrogen
- D. Pyramidal structure of NH3
|
| 8 |
Allotropy is the property of. |
- A. Compound
- B. Element
- C. Atom
- D. Mixtuer
|
| 9 |
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
|
| 10 |
NH3 shows a maximum boiling point among the hydrides of the group V elements due to. |
- A. Very small size of nitrogen
- B. Long pair of electrons present on nitrogen
- C. Enhanced electronegative character of nitrogen
- D. Pyramidal structure of NH3
|