when we blow co2 into the testube containing lime water it turns milky reason the change in colour show the presence of co2 in the exhaled air is assertion n reason r both correct.?
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yes both are correct
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14
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When air is blown from mouth into a test- tube containing lime water, the lime water turned milky due to the presence of carbon dioxide. Explanation: When we exhale, carbon dioxide is produced in the process. Lime water is calcium hydroxide.
hpe it helps
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