| 1 |
Carbon content in coke is. |
- A. 80%
- B. 98%
- C. 70%
- D. 88%
|
| 2 |
The % age of carbon is bituminous is |
|
| 3 |
Percentage of methane present in natural gas is. |
- A. 75%
- B. 80%
- C. 85%
- D. 90%
|
| 4 |
Main component of Natrual gas. |
- A. CH<sub>3</sub>
- B. CH<sub>4</sub>
- C. C<sub>2</sub>H<sub>6</sub>
- D. C<sub>2</sub>H<sub>2</sub>
|
| 5 |
Vital force theory was rejected by. |
- A. Jabir Bin Hayan
- B. Drawin
- C. Wohler
- D. Berzellius
|
| 6 |
Which of the following is the hardest coal? |
- A. Pear
- B. Lignite
- C. Bituminous
- D. Anthracite
|
| 7 |
Chemical formula for urea is: |
- A. NH4CNO
- B. NH4CH
- C. NH2CONH2
- D. NH4CI
|
| 8 |
Formula of Methyl alcohol |
- A. CH<sub>5</sub>-OH
- B. CH<sub>3</sub>-CH<sub>2</sub>-OH
- C. All of them
- D. None of these
|
| 9 |
Natural gas is 85% methane, It is used to make the follwing except. |
- A. Carbon black
- B. Ethane
- C. Propane
- D. Both b and c
|
| 10 |
The strong heating of coal in the absence of air is called. |
- A. Carbonization
- B. Destructive distillation
- C. Fractional distillation
- D. All
|
