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Question
Give reasons to support the fact that air is a mixture.
Short/Brief Note
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Solution
Air is a mixture can be supported by the following evidence.
- Variable composition at different places
- Lacks distinct properties of its own
- Has no definite boiling point
- Components of air cannot be easily separated by physical means.
- Formation of air does not involve any energy change.
- Cannot be represented by a chemical formula.
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CO2 turns calcium hydroxide solution to a milky white solution.
