Question

How carbon dioxide can be tested in laboratory?

Answer 1

HE¥A MATE HeRe iS uR aNsWeR✌✌

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The best way of testing for Carbon dioxide is to bubble it through lime water. Lime water turns milky as the Calcium hydroxide (chemical name for limewater) reacts withcarbon dioxide to form Calcium Carbonate which is insoluble in water and thus forms a milky white precipitate
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Hope this will help uhh out✌
#sneha

Answer 2

By dropping carbon dioxide in lime water as it will turn milky.