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Practice 9th Class Chemistry Chapter 10 “Environmental Chemistry” online with this MCQ test. This chapter focuses on the impact of chemicals on the environment, including pollution, green chemistry, and sustainable practices. Students will learn about air, water, and soil pollution, their causes, effects, and preventive measures. By attempting these multiple-choice questions, learners can strengthen their understanding of environmental issues, chemical reactions affecting nature, and ways to reduce pollution. Each question comes with a correct answer to help students assess their knowledge and improve weak areas. Online practice enhances learning and ensures better preparation for exams.
MCQ's Test For Chapter 10 "Environmental Chemistry"
Try The MCQ's Test For Chapter 10 "Environmental Chemistry"
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Total Questions12
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Time Allowed15
Environmental Chemistry
00:00
Question # 1
Carbon monoxide is harmful to us because.
Question # 2
Which gas is produced by the elecrical lightning in air.
Question # 3
Which substance remains unafaffected in the catalytic conerer fixed int he exhaust of the atutomobiles.
Question # 4
Catalytic converters convert.
Question # 5
% age of oxygen gas by volume in dry air is
Question # 6
Increased concentration of CO2 in air results.
Question # 7
How many tons of ice melts every year?
Question # 8
Which is not a characteristics of SO2?
Question # 9
How many tons of ice have lost since 1990?
Question # 10
A group of gases hat maintains temperature of atmosphere is
Question # 11
Which gas is also known as life gas for plants.
Question # 12
Which components are essential for the cormation of photochemical smog.
Top Scorers Of Chapter 10 "Environmental Chemistry" MCQ`s Test
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B BNVB 25 - Oct - 2025 00 Min 01 Sec 12/12 -
C CH HADI 25 - Oct - 2025 01 Min 31 Sec 12/12 -
M M. Abdullah 24 - Dec - 2025 04 Min 29 Sec 12/12 -
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A Adil Umer 25 - Sep - 2025 02 Min 13 Sec 6/12
9th Class (English Medium) Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Forest fires and burning of wood emit. |
A. O2
B. Cl2
C. N2
D. CO2
|
| 2 | Which gas is also known as life gas for plants. |
A. CO
B. O2
C. CO2
D. NO2
|
| 3 | A group of gases hat maintains temperature of atmosphere is |
A. Oxygen and water vapours
B. Nitrogen and oxygen
C. Carbon di oxide and water vapours
D. Nitrogena nd carbon dixoide
|
| 4 | Concentration of which gas in the atmosphere is decreased by photosynthesis in plants. |
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Water vapours
|
| 5 | How many tons of ice melts every year? |
A. 0.2 trillion
B. 3.2 trillion
C. 1.2 trillion
D. 2.2 trillion
|
| 6 | fossil fuel means. |
A. Coal
B. Petroluem
C. Natural gas
D. All of these
|
| 7 | Which type of pollutants are responsible for changing weather. |
A. Soil pollutants
B. Water pollutants
C. Air pollutants
D. all of the above
|
| 8 | Which gas is produced by the elecrical lightning in air. |
A. NO
B. SO2
C. SO3
D. CO2
|
| 9 | Global warming causes rising of the sea level. The cause of global warming is. |
A. SO2 gas
B. O3 gas
C. NO3 gas
D. CO2 gas
|
| 10 | Which components are essential for the cormation of photochemical smog. |
A. NO2 volatile organic compounds sunlight
B. CO, NO2,CO2
C. CO2,NO2,Sunlight
D. Volatile organic compounds,NO2,CO
|
Test Questions