IIT JEE : Environmental Chemistry QUESTIONS AND ANSWERS :: part2 : 26 to 30
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
26.Earth is protected from U.V. radiations by |
| Carbon dioxide layer |
| Oxygen layer |
| Ozone layer |
| Troposphere. |
27.pH of acid rain is around |
| 6-7 |
| 5-6 or below |
| 7-8 |
| 9-10. |
28.Fluorosis, the bone disease, is caused by the presence of |
| pesticides in water |
| fluorides in water |
| carbon monoxide in air |
| sulphru dioxide in air. |
29.Oxides os sulphur and nitrogen ae important pollutants of |
| Water |
| Air |
| Soil |
| All the above. |
More Environmental Chemistry QUESTIONS AND ANSWERS available in next pages
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