| 1 |
VSEPR theory was proposed by |
- A. Nyholn and Gillespie
- B. Kossel
- C. Lewis
- D. Sidwick
|
| 2 |
Which of the following has bond angle of 120 <sup>o</sup> |
- A. BeCl2
- B. BF3
- C. CH4
- D. NH3
|
| 3 |
Ionic compound do nto show the phenomenon of Isomerism because bond are. |
- A. Directional and rigid
- B. Non directional and rigid
- C. Non directional and non rigid
- D. All above
|
| 4 |
Which of the following molecules have unpaired electrons is the bonding molecular orbitals. |
|
| 5 |
The tendency of an tom to attract shared pair of electron towards itself is called its. |
- A. Ionization energy
- B. Electronegativity
- C. Electron affinity
- D. dipole moment
|
| 6 |
The bond angle in NH3 molecule is |
- A. 109.5<sup>o</sup>
- B. 107.5<sup>o</sup>
- C. 104.5<sup>o</sup>
- D. 106<sup>o</sup>
|
| 7 |
Which of the hydrogen halides has the highest percentage of ionic character. |
- A. HF
- B. HBr
- C. HCl
- D. HI
|
| 8 |
Those elements whose electronegativities are 1.2 and 3.2, react to form |
- A. Ionic bond
- B. Covalent bond
- C. Gaseous substance
- D. Definiting a liquid substance
|
| 9 |
The H - H Bond energy in KJ mole -1 is. |
- A. 346
- B. 436
- C. 463
- D. 336
|
| 10 |
Which of the hydrogen halide has the highest percentage of ionic character. |
- A. HCl
- B. HBr
- C. HF
- D. HI
|