When air is blown from mouth into a test-tube containing lime water, the lime water turns milky due to the presence of:

water vapour

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oxygen

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carbon dioxide

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nitrogen

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Solution

The correct option is C carbon dioxide
Correct answer: (b) carbon dioxide.
When air is blown from the mouth into a test tube containing lime water, the lime water turns milky due to the presence of carbon dioxide in the exhaled air.

Calcium hydroxide(lime water) + Carbon dioxide → Calcium carbonate + Water

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Similar questions

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

Question 11
When air is blown from the mouth into a test-tube containing limewater, the limewater turned milky due to the presence of

(a) oxygen
(b) carbon dioxide
(c) nitrogen
(d) water vapour

Q. When air is blown from the mouth into a test-tube containing lime water, the lime water turned milky due to the presence of _____________.

Q. When air is blown from mouth into a test-tube containing limewater, the limewater turned milky due to the presence of:

Q. Statement 1: Exhaled air contains a higher concentration of carbon dioxide than inhaled air.
Statement 2: When air is blown in from the mouth into a test tube containing lime water, the lime water turns milky.

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