| 1 |
The structure of water molecule is. |
- A. angular
- B. Linear
- C. Trigonal
- D. Trigonal pyramidal
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| 2 |
Which of the following species has unpaired electrons in antibonding molecular orbitals. |
- A. O2<sup>+2</sup>
- B. N2<sup>-2</sup>
- C. B2
- D. F2
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| 3 |
Which molecules is 100% covalent |
- A. H2
- B. H2O
- C. HF
- D. NH3
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| 4 |
Which of the following has bond angle of 120 <sup>o</sup> |
- A. BeCl2
- B. BF3
- C. CH4
- D. NH3
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| 5 |
How many sigma and pi bonds are present in C2H2. |
- A. one sigma and two pi
- B. two pi and one sigma
- C. Two pi and three sigma
- D. Three pi and two sigma
|
| 6 |
A molecular orbital can accommodate maximum electron |
|
| 7 |
Which of the hydrogen halide has the highest percentage of ionic character. |
- A. HCl
- B. HBr
- C. HF
- D. HI
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| 8 |
Ionic bond is formed by combination of groups |
- A. IA and VIII
- B. II A and VII A
- C. IV A and VA
- D. VIA and VII A
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| 9 |
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
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| 10 |
A molecule has two ions pairs and two bond pairs around the central atom. The shape of molecule is. |
- A. Linear
- B. Pyramidal
- C. Angular
- D. Tetrahedral
|