Question

Which of the following statements best explains that air is a mixture, not a compound. * It contains oxygen, nitrogen and carbon dioxide It is colorless and odorless It supports respiration and combustion The gases in air can be separated by fractional distillation

Answer 1

Answer:

The correct answer is it contains oxygen, nitrogen and carbon dioxide

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Answer 2

Answer:

The correct answer is The gases in air can be separated by fractional distillation.

Explanation:

Its is because fractional distillation of air gives about 78 per cent of the air is nitrogen and 21 per cent is oxygen.

Fractional Distillation is a process which give the constituents of the substance subject.