| 1 |
The form of carbon which is not crystalline is. |
- A. Charcoal
- B. Graphite
- C. Bucky Ball
- D. Diamond
|
| 2 |
The percentage of Neon by volume is. |
- A. 0.002
- B. 0.9
- C. 0.02
- D. 0.00055
|
| 3 |
Nitrogen occur in the atmosphere as................. molecules. |
- A. Triatomic
- B. Diatomic
- C. Polyatomic
- D. None of these
|
| 4 |
One of the essential part of all living things on the earth |
- A. carbon
- B. nitrogen
- C. hydrogen
- D. oxygen
|
| 5 |
It is not crystalline form of carbon |
- A. charcoal
- B. graphite
- C. buckyballs
- D. diamond
|
| 6 |
Bucky Ball is teh third form of pure. |
- A. Carbon
- B. Graphite
- C. Magnesium
- D. Diamond
|
| 7 |
Each day a normal man breathe............ litres of air. |
- A. 20,000 to 15,000
- B. 10,000 to 15,000
- C. 15,000 to 20,000
- D. 21,000, to 31,000
|
| 8 |
The compounds consisting of Amino acids are called |
- A. carbohydrate
- B. Fast
- C. Proteins
- D. organic compounds
|
| 9 |
The amout of carbon dioxide int eh air is increased by. |
- A. Photosynthesis
- B. Respiration
- C. Burning
- D. Evaporation
|
| 10 |
It is an important constituent of DNA and RNA our body |
- A. Iron
- B. Chlorine
- C. Fluorine
- D. Phosphorus
|
