| 1 |
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
|
| 2 |
Pitch is black residue of. |
- A. Coke
- B. Coal tar
- C. Coal
- D. Coal gas
|
| 3 |
What one of the following does not contain protein? |
- A. Pulses
- B. Potatoes
- C. Beans
- D. Eggs
|
| 4 |
Which one of the following compounds is an aldehyde? |
- A. CH<sub>3</sub>-CH<sub>2</sub>-OH
- B. CH<sub>3</sub>-COOH
- C. CH<sub>3</sub>CHO
- D. CH<sub>3</sub>COCH<sub>3</sub>
|
| 5 |
Which one of the following does ot contain protein |
- A. Pulses
- B. Potatoes
- C. Beans
- D. eggs
|
| 6 |
The % age of carbon is lignite is |
|
| 7 |
Chemical formula for urea is: |
- A. NH4CNO
- B. NH4CH
- C. NH2CONH2
- D. NH4CI
|
| 8 |
Which is the main component of natrual gas. |
- A. Methane
- B. Ethane
- C. Propane
- D. Charcoal
|
| 9 |
The general formula of alkane is |
- A. C<sub>n</sub>H<sub>2n+2</sub>
- B. C<sub>n</sub>H<sub>2n-2</sub>
- C. C<sub>n</sub>H<sub>2n</sub>
- D. C<sub>n</sub>H<sub>2n+1</sub>
|
| 10 |
Silicon occurs in the form of |
- A. Silica
- B. Silicates
- C. both a and b
- D. None of these
|