Chemistry, asked by justinesaji, 9 months ago

how can we test the presence of carbon dioxide gas. give equation

Answers

Answered by arup59
32

Answer:

Calcium hydroxide makes a white precipitate in the presence of Carbon dioxide gas. Thus we can test the presence of Carbon dioxide.

Ca(OH)2 + CO2 = CaCO3 + H2O

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Answered by sachin7838
12

Answer:

The calcium hydroxide solution reacts with the carbon dioxide to form calcium carbonate and water. The calcium carbonate is a solid and the particles are suspended in the solution. therefore, the white precipitate causes the solution to turn milky

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