Question

व्हेन कार्बन डाइऑक्साइड गैस इस प्रेजेंट इन टू लेमन वॉटर इन तमिल कीबोर्ड चॉर्ड्स विद रीजन व्हाट टाइप ऑफ चेंजिंग इज दिस​

Answer 1

Answer:

As we know that we take in oxygen and release carbon dioxide during the process of respiration, which when exhaled in limewater, reacts with it. This reaction of carbon dioxide released by us with the limewater is the reason behind the change that we will observe.

When CO2 passes through lime water, it turns into milky lime water due to formation of insoluble calcium carbonate.  

Ca(OH)2 + CO2 → CaCO3 + H2O

If CO2 is passed for longer period, turbidity disappears due to form of soluble calcium bicarbonate.

CaCO3 + H2O + H2O + CO2 → Ca(HCO3)2 .