JEE Advanced (Single Correct Type): Environmental Chemistry | Chapter-wise Tests for JEE Main & Advanced PDF Download

Q.1. SO₂ causes
(a) Respiratory and lung disease
(b) Acid rain
(c) Corrosion of building material
(d) All of the above.

Correct Answer is option (d)
SO₂ causes eye irritation, damages respiratory tract, produces asthma and bronchitis. It also causes acid rain and destroys materials.

Q.2. Aerosols present in air are
(a) Negatively charged
(b) Positively charged
(c) Neutral
(d) Combination of all of the above.

Correct Answer is option (d)
Aerosols present in air may be neutral negatively charged of positively charged.

Q.3. Pollutants released from iron and steel industry are
(a) CO₂, NO₂, H₂S
(b) CO, CO₂, SO₂
(c) CO₂, SO₃, NO₂
(d) CO₂, NO and SO₃

Correct Answer is option (b)
CO, CO₂ and SO₂ are released from iron and steel industries.

Q.4. Which of the following does not cause water pollution?
(a) Heavy metals such as Hg, Pb, Cd
(b) Detergents
(c) Chemical effluents
(d) Freons

Correct Answer is option (d)
Freons only cause air pollution.

Q.5. White lung cancer is caused by
(a) Paper
(b) Textiles
(c) Silica
(d) Asbestos

Correct Answer is option (b)
White lung cancer – by inhalation of cotton fibres.

Q.6. Which of the following pollutants is not emitted during volcanic eruptions?
(a) SO₂
(b) H₂S
(c) Hydrocarbons
(d) CO

Correct Answer is option (c)
Hydrocarbons are not emitted during volcanic eruptions.

Q.7. Aerobic oxidation is caused by
(a) Aerobic bacteria in presence of excess of oxygen
(b) Aerobic bacteria in absence of oxygen
(c) Anaerobic bacteria in presence of oxygen
(d) Anaerobic bacteria in absence of oxygen.

Correct Answer is option (a)
Aerobic oxidation is caused by aerobic bacteria in presence of O₂.

Q.8. Lake containing excess of nutritious substances are called
(a) Polluted Lakes
(b) Eutrophic Lakes
(c) Dead Lake
(d) Green Lake

Correct Answer is option (b)
The excessive growth of algae and aquatic plants due to nutrients present in a lake is called eutrophication.

Q.9. Which of the following is responsible for eutrophication of lakes?
(a) Cl^-
(b) Ca²⁺
(c)
(d)

Correct Answer is option (d)
Nitrogen and phosphorus fertilizers which are drained from agricultural lands into water bodies cause eutrophication.

Q.10. Ultraviolet radiation is absorbed by
(a) Exosphere
(b) ionosphere
(c) ozonosphere
(d) Stratosphere

Correct Answer is option (d)
Due to the presence of ozone gas in the stratosphere, it strongly absorbs incoming UV radiation.