| 1 |
Which one is not the fraction of residual oil? |
- A. Paraffin wax
- B. Asphalt
- C. Fuel oil
- D. Coke
|
| 2 |
In solvay's process slaked lime is used to: |
- A. Prepare CO<sub>2</sub>
- B. Prepare quick lime
- C. Recover ammonia
- D. Form Na<sub>2</sub>CO<sub>3</sub>
|
| 3 |
The process of removal of gangue form the ore is technically known as: |
- A. concentration
- B. purification process
- C. metallurgy
- D. refining
|
| 4 |
Which one of the following is not faction of crude oil. |
- A. Paraffin wax
- B. Asphalt
- C. Fuel oil
- D. Petroleum coke
|
| 5 |
Chalco-pyite is an ore of: |
- A. iron
- B. aluminium
- C. silver
- D. copper
|
| 6 |
the chemical formula of chalcopyrite is: |
- A. Cu<sub>2</sub>S
- B. CuFe<sub>2</sub>S
- C. CuS
- D. FeS
|
| 7 |
In forth flotation process the ore particles are preferentially wetted by: |
- A. water
- B. oil
- C. benzene
- D. petrole
|
| 8 |
At the time of partition, How many industries wee present in Pakistan. |
|
| 9 |
The number of carbon atoms present in petroleum gas. |
- A. 1-2
- B. 1-3
- C. 1-4
- D. 1-5
|
| 10 |
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>
|
