Class 10 Chemistry Certification MCQs – Practice Test 3 (Chapter 6)

Environmental Chemistry I Atmosphere Quiz with Answers PDF Download – Test 3

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The MCQ: Percentage of hydrogen in the air is; "Environmental Chemistry I Atmosphere Quiz" App (iOS, Android) with answers: 0.8, 0.99, 0.5, and 0.25 to study online courses. Study Composition of Atmosphere MCQ Questions, download Google Book (Free Chapter) for online education.

Environmental Chemistry I Atmosphere Quiz – Practice Test 3 PDF Download

MCQ: 11

Percentage of hydrogen in the air is

0.99
0.8
0.5
0.25

MCQ: 12

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

chlorofluorocarbons (CFCs)
methane
carbon monoxide
lead compounds

MCQ: 13

Which of the following is true about ozone?

light blue in colour
odourless
not harmful
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?

sulphur dioxide
carbon monoxide
carbon dioxide
oxides of nitrogen

MCQ: 15

What is meant by the term 'meso'?

top
middle
turning
changing

Environmental Chemistry I Atmosphere Certification Guide – Class 10 Chemistry App & e-Book Quizzes

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Environmental Chemistry I Atmosphere MCQs

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