Class 10 Online Courses

Chapter 6: Class 10 Chemistry Exam Tests

Class 10 Chemistry MCQs - Chapter 6

Environmental Chemistry I Atmosphere Quiz Questions and Answers PDF - 3

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Environmental Chemistry I Atmosphere Questions & Answers PDF Download: MCQ Quiz 3

MCQ 11: Percentage of hydrogen in the air is

A) 0.99
B) 0.8
C) 0.5
D) 0.25

MCQ 12: Which of the following have an impact on brain development in human beings especially among children?

A) chlorofluorocarbons (CFCs)
B) methane
C) carbon monoxide
D) lead compounds

MCQ 13: Which of the following is true about ozone?

A) light blue in colour
B) odourless
C) not harmful
D) not a pollutant

MCQ 14: Which of the following is a powerful irritant which can aggravate the symptoms of people who suffer from respiratory disorders?

A) sulphur dioxide
B) carbon monoxide
C) carbon dioxide
D) oxides of nitrogen

MCQ 15: What is meant by the term 'meso'?

A) top
B) middle
C) turning
D) changing

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Environmental Chemistry I Atmosphere App (Android & iOS)

Environmental Chemistry I Atmosphere App (Android & iOS)

10th Grade Chemistry App (Android & iOS)

10th Grade Chemistry App (Android & iOS)

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College Chemistry App (Android & iOS)

9th Grade Chemistry App (Android & iOS)

9th Grade Chemistry App (Android & iOS)