| 1 |
Acid rain fist of all was observed by |
- A. Augus Smith
- B. Robert Hook
- C. Mosley
- D. Watson
|
| 2 |
A single chloride free radical can destroy how many ozone molecules. |
- A. 100
- B. 100000
- C. 10000
- D. 10
|
| 3 |
Disinfection of water by chlorine is done by the production of. |
- A. NH2Cl
- B. NCl2
- C. HOCl
- D. NHCl2
|
| 4 |
The temperature in the incineration of industrial and hazardous waste process has a range. |
- A. 900 to 1000 <sup>o</sup>C
- B. 250 to 500<sup>o</sup>C
- C. 950 to 1300<sup>o</sup>C
- D. 500 to 900<sup>o</sup>C
|
| 5 |
The yellowish colour in photochemical smog is due to the presence of. |
- A. NO
- B. NO2
- C. SO2
- D. CO2
|
| 6 |
The pH of unpolluted rain water should be |
- A. 5.00
- B. 5.60
- C. 6.50
- D. 7.00
|
| 7 |
Which one is primary pollutant. |
- A. Peroxyacetyl nitrate
- B. Sulphuric acid
- C. Carbonic acid
- D. Carbon monoxide
|
| 8 |
The residence time of NO is |
- A. Few hours
- B. 1 day
- C. 3 days
- D. 4 days
|
| 9 |
Ecosystem is smaller unit of |
- A. Lithosphere
- B. Hydroshpere
- C. Amosphere
- D. Biosphere
|
| 10 |
A single chloride free radical can destroy how many ozone molecules |
- A. 100
- B. 100,000
- C. 100,00
- D. unlimited
|