| 1 |
Which of the hydrogen halides has the highest percentage of ionic character. |
- A. HF
- B. HBr
- C. HCl
- D. HI
|
| 2 |
Which of the following has bond angle of 120 <sup>o</sup> |
- A. BeCl2
- B. BF3
- C. CH4
- D. NH3
|
| 3 |
The shape of H<sub>3</sub>O is |
- A. Tetrahedral
- B. Angular
- C. Trigonal planer
- D. Pyramidaj
|
| 4 |
Chlorine atom and chloride Cl- ions |
- A. Have same chemical and physical properties
- B. Are allotropes of chlorine
- C. Have same number of electrons
- D. Have same number of proton
|
| 5 |
In a period of periodic table, atomic radii |
- A. Increases
- B. Decreases
- C. Remain same
- D. First decreases than increases
|
| 6 |
According to MOT, which molecular orbital has highest energy. |
- A. sigma 1s
- B. pi+ 2S
- C. pi 2py
- D. Pi+ 2px
|
| 7 |
Suppose a new element 'J' has discovered and has seven electron in the valence shell. Which statement about this element would be correct. |
- A. It is monatomic
- B. It form covalent bond with hydrogen
- C. It forms stable positive ion
- D. It forms covalent bond with group IA element
|
| 8 |
Which one of the following has no tendency of form coordinate covalent bond with H+ |
- A. NH3
- B. H2O
- C. CH4
- D. CH3OH
|
| 9 |
Which element has highest ionization potential |
|
| 10 |
Fluorine molecule (F<sub>2</sub>) is formed by the overlap of |
- A. s - s orbital
- B. s - p orbital
- C. p - p head on overlapping of orbitals
- D. p - p parallel overlapping of orbitals
|