| 1 |
Which one of the ore of copper? |
- A. Copper glance
- B. Chalcopyrite
- C. Both a and b
- D. None of these
|
| 2 |
The impurities associated with the minerals are known as: |
- A. Metallurgy
- B. Ores
- C. Gangue
- D. Compounds
|
| 3 |
Ammonia is prepared by the process . |
- A. Ostwald
- B. Haber
- C. Clark
- D. All
|
| 4 |
Petroleum fraction having composition C<sub>5</sub> to C<sub>7</sub> is. |
- A. Petroleum Gas
- B. Petroleum Ether
- C. Kerosine oil
- D. Gasoline or petrol
|
| 5 |
Red hair contains compound of. |
- A. Iron
- B. copper
- C. titanium
- D. Molybdenum
|
| 6 |
Brown hair contains. |
- A. Iron compound
- B. Copper compound
- C. titanium compound
- D. Both a and b
|
| 7 |
The number of carbon atoms present in kerosene oil. |
- A. 8-12
- B. 9-12
- C. 10-12
- D. 11-12
|
| 8 |
Composition of carbon in kerosene oil is. |
- A. C<sub>10</sub>-C<sub>12</sub>
- B. C<sub>12</sub>-C<sub>12</sub>
- C. C<sub>16</sub>-C<sub>18</sub>
- D. C<sub>30</sub>-C<sub>30</sub>
|
| 9 |
Chalco-Pyrite is an ore of: |
- A. Copper
- B. Silver
- C. Iron
- D. Aluminium
|
| 10 |
At the time of partition, How many industries wee present in Pakistan. |
|