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

How forests contribute to lowering the temperatue of earth.

Question # 2

How does acid rain damage stone monumets made of limestone.

Question # 3

The depletion of Ozone in stratosphere region is mainly due to the reactionof O3 with

Question # 4

Phtochemcial smog is characterized by high daytime concentrations  of.

Question # 5

For an air quality index termed hazardous the colour.

Question # 6

Which is NOT considered a greenhouse gas.

Question # 7

Which of the followig has the highest globeal warming potential per molecule but is present in much smaller quantities.

Question # 8

Acid rain mainly results from atmosphereic depositon of.

Question # 9

Major human soruce of CO2 increase in atmosphere is.

Question # 10

Carbon monoxide is dangreous because it

Question # 11

dichlorobiphenyl trichloroethane DDT is used as.

Question # 12

Water vapour in the atmosphre is imporatant because it

Question # 13

Major human soruces of CO2 increase in atmosphere is

Question # 14

Percentage of oxygen in atmosphere

Question # 15

NO2 is the atmosphere contributes to

Question # 16

What are teh primary chemical processes that emoves carbon dioxide from the atmosphere.

Question # 17

An AQI value between 51 and 100 typically indicates which leel of air quality.

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

Sr.# Question Answer
1 Which gas is the most important long lived anthropognic greenhouse gas by concentration 
A. Water vapour
B. Nitrogen
C. Oxygen
D. Carbon dioxide
2 Catalyst used in selective catalytic converter include.
A. TiO2
B. zEOLITES
C. Both a and B
D. None of these
3 NO2 in the atmopshere contributes to 
A. Acid rain formation and phtochemcia smog
B. Ozone layer repair
C. Decreasign greenhouse effect only
D. Building of clouds only
4 Percentage of oxygen in atmosphere
A. 78.09%
B. 21.01%
C. 0.04%
D. 0.93%
5 Which statement about carbon dixoide is correct
A. CO2 is a greenhouse gas theat absorbs infrated ratiation 
B. CO2 Destroys the ozone layer
C. CO2 is lighter than air and escapes to space 
D. CO2 is the major componet of the atmosphere
6 Primary pollutants are
A. Emitted directly from sources into the atmosphere
B. Formed in the atmosphere by reactions
C. Only naturali origin
D. Harmless gases
7 Which of the following is an environmental effect of acid rain.
A. Damage to forests and equatic life due to lowered pH
B. Increased pH of lakes 
C. Building of mountain ranges
D. Improved soi fertity everywhere
8 Ground level ozone is mainly formed from.
A. Direct emission from factories
B. Photochemicla reactions of NOx and VOC's in snlight
C. Evaporation of water
D. Chlorofluorocarbons only
9 Which statment about carbon dixoide is correct
A. CO2 is a greenhouse gas that absorbs infrared radiation 
B. CO2 destroys the ozine layer
C. CO2 is lighter than air and escapes to space
D. CO2 is the major componet of the atmosphere
10 Which is considered a natural source of ari pollution.
A. Industiral smokestacks only
B. Volcanic eruptions and dust storms
C. Automobile exhaust only
D. Power plants only

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