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प्रश्न
When air is blown from mouth into a test-tube containing lime water, the lime water turns milky due to the presence of:
विकल्प
Oxygen
Carbon dioxide
Nitrogen
Water vapour
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उत्तर
Carbon dioxide
Lime water turns milky due to the presence of carbon dioxide in the exhaled air.
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संबंधित प्रश्न
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