How to test the presence of carbon dioxide gas in the laboratory
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Answer:
The most effective way to test for Carbon Dioxide is to bubble the gas through "lime water", a diluted solution of calcium hydroxide (slaked lime).
Explanation:
When you bubble carbon dioxide through the solution, it forms a solid precipitate of calcium carbonate – chalk or limestone.
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THE BEST WAY TO TEST CO2 GAS IN LABORATORY IS TO BUBBLE IT THROUGH LIME WATER.LIME WATER TURNS MILKEY AS THE CALCIUM HYDROXIDE REACTS WITH CARBON DIOXIDE TO FORM CALCIUM CARBONATE WHICH IS INSOLUBLE IN WATER AND THUS FORM A MILKY PPT.
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