Lime water turns milky when exposed to air and stirred. This shows that air contains:

carbon dioxide

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hydrogen

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nitrogen

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oxygen

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Solution

The correct option is A carbon dioxide
Lime water turns milky when exposed to air and stirred as lime water mixes with $C O_{2}$ and forms $C a C O_{3}$ (calcium carbonate) which turns the lime water milky.
$C a O + C O_{2} ⟶ C a C O_{3}$

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Similar questions

Lime water turns milky when exposed to air and stirred. This shows that air contains:

Statement 1- Lime water turns milky when air is passed through the solution.

Statement 2- Air contains carbon dioxide which turns lime water milky.

Why lime water turns milky when it gets exposed to carbon dioxide?

Q. When air is blown from mouth into a test tube containing lime water the lime water turns milky due to _________.

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

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Lime water turns milky when exposed to air and stirred. This shows that air contains:

The correct option is A carbon dioxideLime water turns milky when exposed to air and stirred as lime water mixes with CO2 and forms CaCO3 (calcium carbonate) which turns the lime water milky. CaO+CO2⟶CaCO3

The correct option is A carbon dioxide
Lime water turns milky when exposed to air and stirred as lime water mixes with $C O_{2}$ and forms $C a C O_{3}$ (calcium carbonate) which turns the lime water milky.
$C a O + C O_{2} ⟶ C a C O_{3}$