| 1 |
Chemical formula for urea is: |
- A. NH4CNO
- B. NH4CH
- C. NH2CONH2
- D. NH4CI
|
| 2 |
The coal in which the percentage of carbon is 60% |
- A. Peat
- B. Lignite
- C. Bituminous
- D. Anthracit
|
| 3 |
Hydrogen atoms preset in pentane are. |
|
| 4 |
The black residue of the coal tar is called: |
- A. peat
- B. lignite
- C. pitch
- D. matte
|
| 5 |
Open chain compounds are also called: |
- A. aliphatic compounds
- B. alicyclic compounds
- C. aromatic compounds
- D. hydrocarbons
|
| 6 |
Which one of the following is not a fossil fuel? |
- A. Coal
- B. Natural gas
- C. Bio gas
- D. Petroleum
|
| 7 |
Identify which one of the following compounds is a ketron? |
- A. (CH<sub>3</sub>)<sub>2</sub> CHOH
- B. (CH<sub>3</sub>)<sub>2</sub>CHCl
- C. (CH<sub>3</sub>)<sub>2</sub>CO
- D. (CH<sub>3</sub>)<sub>2</sub>CHCl
|
| 8 |
The ability of carbon atoms to form chains is called. |
- A. Isomerism
- B. Catenation
- C. Resonance
- D. Condensation
|
| 9 |
The % age of carbon is bituminous is |
|
| 10 |
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>
|