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प्रश्न
Answer the question put against the following constituents of air :
Oxygen : What is the percentage proportion of oxygen in air ? Why is oxygen called active air.
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उत्तर
20.9%, oxygen is called active air because it supports life on earth. It is essential for the process of combustion.
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संबंधित प्रश्न
Answer the question put against the following constituents of air :
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Classify Carbon monoxide. Also give a balanced equation to prepare it.
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What is the percentage of nitrogen in air?
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Carbon dioxide
