When air is blown from mouth into a test-tube containing lime water, the lime water turns milky due to the presence of:(a) oxygen    (b) carbon dioxide    (c) nitrogen    (d) water vapour


(b) carbon dioxide


When air is blown from mouth into a test-tube containing lime water, the lime water turns milky due to the presence of carbon dioxide in the exhaled air.

Updated on: 24-Mar-2023

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