| 1 |
Electrolyte is ____________ solid form. |
- A. in
- B. Sometimes in
- C. Never in
- D. Always in
|
| 2 |
Solids are fixed ____________ |
- A. Shape
- B. Velocity
- C. Mass
- D. Atoms
|
| 3 |
Identify when pair has polar covalent bonds:<br> |
- A. O<sub>2</sub> and Cl<sub>2</sub><br>
- B. H<sub>2</sub>O and N<sub>2</sub><br>
- C. H<sub>2</sub>O and C<sub>2</sub>H<sub>2</sub><br>
- D. H<sub>2</sub>O and HCI<br>
|
| 4 |
The vapour pressure of a liquid increase with the:<br> |
- A. increase pressure<br>
- B. increase of temperature<br>
- C. increase of intermolecular forces<br>
- D. increase of polarity of molecules<br>
|
| 5 |
Increase in ________________ increase evaporation. |
- A. Temperature
- B. Stronger
- C. All
- D. None of above
|
| 6 |
H° - H° has ________________ energy. |
- A. Lower
- B. Higher
- C. Medium
- D. Nil
|
| 7 |
The earth is made up of ___________ % of iron. |
|
| 8 |
Which of the following can be separated by physical means?<br> |
- A. Mixture <br>
- B. Element <br>
- C. Compound <br>
- D. Radical <br>
|
| 9 |
The molecular mass of water is |
- A. 16 amu
- B. 14 amu
- C. 18 amu
- D. 20 amu
|
| 10 |
Which one is least reactive non-metal? |
|
