1. Which of the following is not a heavy industry?
A. Iron
B. Fertilizer
C. Paper
D. None
✅ The correct answer is option D.
Environmental Chemistry MCQs
2. Which of the following is a macronutrient?
A. Boron
B. Iron
C. Copper
D. Carbon
✅ The correct answer is option D.
3. The requirement of macronutrient per acre of the land is
A. 5 to 200 kg
B. 20-200 kg
C. 200-400 kg
D. 30-400 kg
✅ The correct answer is option A.
4. Three elements needed for the healthy growth of plants are
A. N P K
B. N K C
C. N S P
D. N Ca P
✅ The correct answer is option A.
5. Which of the following is not a secondary pollutant
A. Ozone
B. Carbonic acid
C. Sulphuric acid
D. Carbon dioxide
✅ The correct answer is option D.
6. The residence time of methane in the atmosphere is
A. 3 – 7 days
B. 2 -3 days
C. 3 – 7 years
D. 2 – 3 years
✅ The correct answer is option C.
7. A major cause of SO2 on a global scale is
A. Volcanoes
B. Electric sparks
C. Combustion
D. All
✅ The correct answer is option A.
8. Hypochlorous acid is used for disinfecting the water it reacts with the dissolved ammonia producing
A. NH2Cl
B. NHCI2
C. NCI2
D. All of the above
✅ The correct answer is option D.
9. Acid present in acid rain may be
A. H2SO4
B. HNO3
C. Both A and B
D. None
✅ The correct answer is option C.
10. The yellow colour in photochemical smog is due to the presence of
A. Dinitrogen oxide
B. Nitrogen dioxide
C. Chlorine gas
D. Chlorine dioxide
✅ The correct answer is option B.