MCQ on Environmental Chemistry: Chemistry is considered to be the most scoring subject in NEET JEE Exam. As it is one of the easiest scoring subjects, it is often ignored and undermined a subject. But if you want to get an edge over others, here is a tip, master NEET/JEE Chemistry concepts. Chemistry demands the attention of students in understanding reactions and concrete basic understanding but once done it only gets easier from there. Mastering NCERT syllabus for NEET/JEE Chemistry should be topping your list of to-do for chemistry.

In this post we are providing you MCQ on Environmental Chemistry, which will be beneficial for you in upcoming NEET, JEE, Medical and Engineering Exams.

MCQ on Environmental Chemistry

Q1. Find the secondary pollutant among these.
a) N₂O
b) SO₂
c) CO₂
d) PAN

Q2. Which of the following is the coldest region of the atmosphere?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere

Q3. The reaction responsible for the radiant energy of the Sun is ______.
a) combustion
b) chemical reaction
c) nuclear fusion
d) nuclear fission

Q4. The compound essential for the process of photosynthesis has _______ element.
a) Ba
b) Ca
c) Fe
d) Mg

Q5. Photochemical smog normally does not contain ______.
a) Acrolein
b) Ozone
c) Chlorofluorocarbons
d) Peroxyacetyl nitrate

Q6. Which of the oxide of nitrogen is not a common pollutant?
a) NO
b) NO₂
c) N₂O
d) N₂O₅

Q7. Alum’s capacity to purify water is due to ______.
a) softens hard water
b) it improves taste
c) impurities’ coagulation
d) pathogenic bacteria get destroyed

Q8. Depletion of the ozone layer is caused due to ______.
a) Freons
b) Ferrocene
c) Fullerenes
d) Polyhalogens

Q9. In the air, N₂ and O₂ occur naturally but they do not react to form oxides of nitrogen because ______.
a) the reaction is endothermic
b) oxides of nitrogen are unstable
c) catalyst is required for the reaction
d) N₂ and O₂ do not react with each other

Q10. Find the incorrect statement.
a) BOD value of clean water is less than 5 ppm
b) Drinking water pH should be between 5.5-9.5
c) carbon, sulphur and nitrogen oxides are the most widespread air pollutants
d) dissolved oxygen concentration below 5 ppm is ideal for the growth of fish

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By Team Learning Mantras