Class 10 Chemistry MCQs - Chapter 6
Environmental Chemistry I Atmosphere Quiz Questions and Answers PDF - 3
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The Quiz: Percentage of hydrogen in the air is; "Environmental Chemistry I Atmosphere" App Download iOS & Android (Free) with answers 0.8, 0.99, 0.5 and 0.25 to study online courses. Study composition of atmosphere quiz questions, download Amazon eBook (Free Sample) for online education.
Environmental Chemistry I Atmosphere Questions & Answers PDF Download: MCQ Quiz 3
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
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