The evolution of carbon dioxide can be tested by bubbling the gas through lime water.
How is carbon dioxide gas tested?
There are different ways the evolution of carbon dioxide in a reaction can be tested. The most popular one, however, is to bubble the evolved gas through a solution containing lime water.
If the lime water turns milky or cloudy white, then you are sure that carbon dioxide is evolved from the reaction.
Carbon dioxide reacts with the lime water to form a precipitate of calcium carbonate, otherwise known as chalk or limestone. Thus, the cloudy whiteness is a result of insoluble limestone formed from the reaction.
More on carbon dioxide can be found here: https://brainly.com/question/3049557
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