Dry air is a mixture of__________________?
Correct answer: D. Gases
- A. Vapors
- B. Neither A. nor B.
- C. Both A. & B.
- D. Gases
Explanation
Dry air means air from which water vapour has been removed, so it consists of a mixture of permanent gases such as nitrogen, oxygen and argon. It is therefore classified as a mixture of gases, not vapours.
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