| 1 |
How many units are in Pakistan for manufacturing of Urea. |
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| 2 |
Which contains sufficient amount of metal? |
- A. Mineral
- B. Ores
- C. Rocks
- D. Soil
|
| 3 |
The impurities associated with the minerals are known as: |
- A. Metallurgy
- B. Ores
- C. Gangue
- D. Compounds
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| 4 |
Which one of the ore of copper? |
- A. Copper glance
- B. Chalcopyrite
- C. Both a and b
- D. None of these
|
| 5 |
Formula of Urea is. |
- A. KCNO
- B. H<sub>2</sub>N-CO-NH<sub>2</sub>
- C. HN-CO<sub>2</sub>-NH
- D. H<sub>3</sub>N-CO-NH<sub>3</sub>
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| 6 |
Concentration is process of: |
- A. Mixting technique
- B. Separating technique
- C. Boiling technique
- D. Cooling techique
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| 7 |
Which one of the following is not a fraction of petroleum? |
- A. Kerosene oil
- B. Diesel oil
- C. Alcohol
- D. Petrol
|
| 8 |
The residual oil is heated above 400 c to produce. |
- A. Lubricants
- B. Paraffin wax
- C. Asphalt
- D. All
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| 9 |
On which bases froth floatation process take place? |
- A. Density bases
- B. Concentration basis
- C. Watting basis
- D. None of these
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| 10 |
Compound of metal exist under earth crust are called. |
- A. Ore
- B. Gangue
- C. Minral
- D. None of these
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