Chemistry
Air consists of:
- only oxygen
- only nitrogen
- only carbon dioxide
- all of these.
Air
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Answer
all of these.
Reason — The main gases present in air are nitrogen and oxygen. Besides these two gases, air also contains small quantities of carbon dioxide, water vapour, dust particles, smoke and traces of inert gases like helium, neon, argon, etc.
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Related Questions
The most abundant gas in Earth's atmosphere is:
- oxygen
- nitrogen
- carbon dioxide
- argon
Which of the following gases supports burning?
- oxygen
- nitrogen
- carbon dioxide
- water vapour
Air is a mixture because:
- the components of air retain their individual properties.
- energy change takes place when the components of air are mixed together.
- the composition of air remains the same everywhere.
- the components of air cannot be separated by simple physical methods.
Oxygen in air is:
- 4/5 parts
- 1/5 parts
- 1/3 parts
- negligible