11th Class Chemistry Chapter 14 MCQ Test with Answer

Prepare for your exams with this 11th Class Chemistry Chapter 14 MCQ Test. It covers all key concepts and important questions from the chapter. Each question provides an instant answer, helping students evaluate their knowledge immediately. This test is designed to strengthen your understanding, improve problem-solving skills, and identify weak areas before exams. Perfect for self-study or online practice, it saves time and makes revision more effective. Using this Chapter 14 Chemistry MCQ Test, students can gain confidence, revise efficiently, and ensure better performance in their 11th Class Chemistry exams.

MCQ's Test For Chapter 14 "Atmosphere"

Try The MCQ's Test For Chapter 14 "Atmosphere"

  • Total Questions17

  • Time Allowed20

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Atmosphere

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Question # 1

Incomplete combustion of carbon based fuels tends to form.

Question # 2

Wheather events occur in which layere of atmosphere.

Question # 3

Which is NOT considered a greenhouse gas.

Question # 4

Major human soruces of CO2 increase in atmosphere is

Question # 5

What is a common human activity that led to incrreased level of carbon monoxide in the atomosphere.

Question # 6

Which of the followig is used in diesel engines to restrict emission of harmful gases.

Question # 7

Which of the followign lowers the air quality.

Question # 8

Which of the followng is a trace gas but important for green house effect.

Question # 9

Which of the following causes ozone depletion 

Question # 10

Which layer of the atmosphere contains most of the Earth's weather phenomena.

Question # 11

Carbon monoxide is dangreous because it

Question # 12

Primary pollutants are

Question # 13

Incomplege comubstion of carbon based fuels tends to form.

Question # 14

Primary pollutants like nitrogen oxide and volatile organic compounds react in the presence of sunligh to form a key componetn ofphotochecial smong. which is a.

Question # 15

Which substance was primarily responsible for stratosphereic ozone depletion .

Question # 16

dichlorobiphenyl trichloroethane DDT is used as.

Question # 17

The chemcial specie responsibel for ozone depletion by chlorofluorcarbons is.

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FSc Part 1 Chemistry (New Book) Chapter 14 Important MCQ's

Sr.# Question Answer
1 NO2 is the atmosphere contributes to
A. Acid rain formation and phtochemical smog
B. Ozone layer repair
C. Decreasing greenhous of effect only
D. Buildig of clouds only
2 A key componetn that distingulishes photochemial smog from industiral smog is the presence of
A. High concentrations of sulfur dioxide
B. A significant amunt o ozone and other photochemcial oxidants like PAN 
C. Reduced visibilit due to fog and smoke Particles
D. Formation primarily during the early morning house
3 Which substance was primarily responsible for stratosphereic ozone depletion .
A. CFCs
B. Carbon dixoide
C. Methane
D. Ozone itself
4 Major human soruce of CO2 increase in atmosphere is.
A. Fossil fuel combustion and deforestation 
B. Phtosynthesis
C. Ocean uptake
D. Nitrogen fixation 
5 Catalyst used in selective catalytic converter include.
A. TiO2
B. zEOLITES
C. Both a and B
D. None of these
6 The depletion of Ozone in stratosphere region is mainly due to the reactionof O3 with
A. CO2
B. SO2
C. CFSs
D. O2
7 Phtochemcial smog is characterized by high daytime concentrations  of.
A. Pure oxygen
B. Carbonic acid
C. Ground level ozone and peroxyacyl nitrates 
D. Nigrogen gas only
8 Major human soruces of CO2 increase in atmosphere is
A. Fossil fuel combuston and deforestation
B. Phtosyntheiss
C. Ocean uptake
D. Nirogen fixation
9 An AQI value between 51 and 100 typically indicates which leel of air quality.
A. Good
B. Unhealthy
C. Moderate
D. Fatal
10 Which gas is the most important long lived anthropognic greenhouse gas by concentration 
A. Water vapour
B. Nitrogen
C. Oxygen
D. Carbon dioxide

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