| 1 |
The number of bonds in nitrogen molecules is. |
- A. One pi and one sigma
- B. One pi and two sigma
- C. Thre sigma only
- D. Two pi and one sigma
|
| 2 |
The structure of water molecule is. |
- A. angular
- B. Linear
- C. Trigonal
- D. Trigonal pyramidal
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| 3 |
Which of the following has coordinate covalent bond. |
- A. NH4
- B. NaCl
- C. HCl
- D. AlCl3
|
| 4 |
Along period of periodic table shielding effects. |
- A. Increases
- B. Decreases
- C. Remain constant
- D. First increases than decreases
|
| 5 |
A molecular orbital can accommodate maximum electron |
|
| 6 |
The bond order of N2 molecule is. |
|
| 7 |
Which of the following is true for ionic compounds |
- A. They are non-electrolytes in the molten state
- B. They have bonds which are directional
- C. They conduct electricity in solid state
- D. They are generally more soluble in polar solvents than in non-polar solvents
|
| 8 |
Forces of attraction between He atoms are. |
- A. Hydrogen bonding
- B. London forces
- C. Debye forces
- D. Ion dipole forces
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| 9 |
What is bond order. |
- A. Number of unpaired electrons
- B. Number of paired electrons
- C. Number of electrons present in antibonding molecular orbital
- D. Number of bond formed between two atoms after overlap
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| 10 |
Dipole Moment of H2O is. |
- A. 1.61 D
- B. 1.85 D
- C. 0.95 D
- D. 1.49 D
|