Hello there!

CO2 (Carbon Dioxide) is the gas which turns lime water into milky white. Here is the complete chemical reaction of the above statement.

Ca(OH)2+CO2 -> CaCO3(+)+H2O

In the above reaction, you can clearly see that an insoluble calcium carbonate is formed due to the passage of carbon dioxide gas (CO2).

I hope you got your answer.

Carbon Dioxide and Sulphur Dioxide.

Both of them can turn however lime water milky.

Now, how to differentiate in between them?

When excess of Sulphur Dioxide is passed, the milkiness disappears due to formation of Ca(HSO3)2 Calcium Bisulphite.

Hello,

Carbon dioxide gas turns limewater into milky water, when carbon dioxide gas react with calcium hydroxide solution then it produce white precipitate of calcium carbonate, when carbon dioxide is bubbled through limewater, then limewater turns into milky limewater.


Hope this helps, all the best.

Hello student, hope you are doing good.

The answer to your question is Carbon Dioxide. Limewater is a solution of calcium hydroxide. Carbon dioxide when reacts with calcium hydroxide solution, produces a white precipitate of calcium carbonate. . If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white .

Hope this helps you. Good Luck !

Dear student,

A white precipitate of calcium carbonate is produced when carbon dioxide gas is paased through calcium hydroxide.
This solution of calcium hydroxide is called limewater. And lime water when bubbled with carbon dioxide gas , then the limewater turns milky. Or also it is called that lime water turns cloudy white.