Environmental Chemistry

Weathering of phosphate rocks only ✘ Agricultural fertilizers only ✘ Phosphate rocks and sewage ✘ Sewage and agricultural fertilizers ✔ NULL ✔ NULL NULL

✘ ✘ ✘ ✔ NULL ✔ NULL NULL

Combining with oxygen to form carbon dioxide ✘ Destruction of haemoglobin ✘ Preventing reaction between oxygen and haemoglobin ✘ Forming stable compound with haemoglobin ✔ NULL ✔ NULL NULL

Herbicides ✘ Fungicides ✘ Soil conditioners ✘ Fumigants ✔ NULL ✔ NULL NULL

Gril ✘ Aggregates ✘ Aerosols ✘ Smoke ✔ NULL ✔ NULL NULL

Photochemical smog is formed through photochemical reaction involving solar energy ✘ Photochemical smog does not cause irritation in eyes and throat ✘ Carbon monoxide does not play any role in photochemical smog formation ✘ Photochemical smog is an oxidising agent in character ✔ NULL ✔ NULL NULL

Target ✘ Receptor ✘ Atmosphere ✘ Both (a) and (b) ✔ NULL ✔ NULL NULL

✘ ✘ CO ✘ Hydrocarbons ✔ NULL ✔ NULL NULL

Solid pollutants ✘ Liquid pollutants ✘ Gaseous pollutants ✘ None of these ✔ NULL ✔ NULL NULL

Nicotine ✘ Atropine ✘ Tannic acid ✘ Morphine ✔ NULL ✔ NULL NULL