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Air and Atmosphere — CHEMISTRY STD 6 — Question

ICSE BoardEnglish MediumSTD 6CHEMISTRYAir and Atmosphere1 Mark
Question
What do you observe when Carbon dioxide gas is passed through lime water.
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Answer

When$CO _2$ gas is passed through lime water it forms calcium carbonate which is white precipitate (turbidity). This gives the milky white appearance to the solution.

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