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Question

Which of the following gases are present in air?
  1. Oxygen

  2. Water Vapour

  3. Carbon Dioxide

  4. Nitrogen


Solution

The correct options are
A

Oxygen


B

Water Vapour


C

Carbon Dioxide


D

Nitrogen


Air is a mixture of gases, water vapour and dust particles. It has many gases such as nitrogen, oxygen, carbon dioxide, carbon monoxide, water vapour and even dust particles.Dry air contains 20.95% oxygen,78.09% nitrogen,0.04% carbon dioxide, 0.93% argon and small amounts of other gases.

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