MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Pick out the one that is not one of the effects of ozone depletion. |
| A. | Cataract |
| B. | Damages paints and fibers |
| C. | Sunburn |
| D. | Increase in the moisture content of soil |
| Answer» E. | |
| 2. |
Identify the viable pollutant from the following. |
| A. | Moulds |
| B. | Dry leaves |
| C. | Fly ash |
| D. | Oil smoke |
| Answer» B. Dry leaves | |
| 3. |
Where does the ozone hole occur? |
| A. | North pole |
| B. | South pole |
| C. | The arctic |
| D. | Stratosphere |
| Answer» C. The arctic | |
| 4. |
What is the major reason of ozone depletion? |
| A. | Release of CO |
| B. | Release of CO<sub>2</sub> |
| C. | Release of CFC |
| D. | Release of CH<sub>4</sub> |
| Answer» D. Release of CH<sub>4</sub> | |
| 5. |
Which is the gas that causes eye irritation as a result of photochemical smog? |
| A. | CO<sub>2</sub> |
| B. | O<sub>2</sub> |
| C. | CH<sub>4</sub> |
| D. | Acrolein |
| Answer» E. | |
| 6. |
What is the full form of PAN? |
| A. | Peroxyacetyl nitrate |
| B. | Peroxyacetyl nitrite |
| C. | Peroxyacetylene nitride |
| D. | Peroxyacetyl nitride |
| Answer» B. Peroxyacetyl nitrite | |
| 7. |
Which of the following is the suitable climate for photochemical smog to occur? |
| A. | Cool, humid |
| B. | Dry, warm |
| C. | Sunny, humid |
| D. | Cool, dry |
| Answer» C. Sunny, humid | |
| 8. |
When the pH of rain water is above 5.6, then it is called acid rain. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Which of the following are the main constituents of acid rain? |
| A. | Carbon, nitrogen |
| B. | Sulphur, oxygen |
| C. | Sulphur, nitrogen |
| D. | Nitrogen, hydrogen |
| Answer» D. Nitrogen, hydrogen | |
| 10. |
The amount of carbon dioxide should not cross the delicate proportion of which of the following? |
| A. | 0.01% |
| B. | 0.04% |
| C. | 0.3% |
| D. | 0.03% |
| Answer» E. | |
| 11. |
Identify the correct method by which carbon dioxide is produced. |
| A. | By the incomplete combustion of coal or petrol |
| B. | During volcanic eruptions |
| C. | Mainly by automobile exhaust |
| D. | By burning sulfur containing fossil fuels. |
| Answer» C. Mainly by automobile exhaust | |
| 12. |
CO has high affinity for haemoglobin. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
The irritant red haze in traffic and congested places is due to the oxides of which of the following? |
| A. | Nitrogen |
| B. | Sulphur |
| C. | Carbon |
| D. | Hydrocarbons |
| Answer» B. Sulphur | |
| 14. |
Identify the correct order of the different regions of the atmosphere. |
| A. | Stratosphere<mesosphere<troposphere<thermosphere<exosphere |
| B. | Troposphere<mesosphere<stratosphere<exosphere<thermosphere |
| C. | Troposphere<stratosphere<mesosphere<thermosphere<exosphere |
| D. | Exosphere>mesosphere>thermosphere>stratosphere>troposphere |
| Answer» D. Exosphere>mesosphere>thermosphere>stratosphere>troposphere | |