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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:
पर्याय
Oxygen
Carbon dioxide
Nitrogen
Water vapour
उत्तर
Carbon dioxide
Lime water turns milky due to the presence of carbon dioxide in the exhaled air.
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संबंधित प्रश्न
State whether the statement is true or false:
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______ refers to the physical process by which gaseous exchange takes place between the atmosphere and the lungs.
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