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CBSE Class 10 Answered

Why CO2 is passed through lime water for a short duration only  
Asked by pranjalthegreat19 | 24 Sep, 2018, 09:55: PM
answered-by-expert Expert Answer
When CO2 is passed through lime water for a short duration, it turns lime water milky due to the formation of a white precipitate of calcium carbonate.
 
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When CO2 is passed through lime water for a long time, then white precipitate of calcium carbonate which was formed initially dissolves due to the formation of soluble calcium hydrogen carbonate and solution becomes clear again.
 
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Answered by Varsha | 25 Sep, 2018, 12:04: PM
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