Question

lime water turns milky when carbon dioxide gas is passed through it and further turns colourless when excess of carbon dioxide is bubbled through it explain

Answer 1

When it reacts with CO2 insoluble CaCO3 is formed which turns solutionmilky. ... When carbon dioxide ispassed through lime water it turns milky due to the formation of waterinsoluble precipitate CaCO3. Still ifexcess of CO2 is passed it formswater soluble Calcium bicarbonate . Thus the solution remains clear.

Answer 2

Hey friend here is your answer

When we pass carbon dioxide gas through lime water it turns milky due to the occurrence of the following reaction

Ca(OH)2+CO2.........CaCO3+H2O

This turns the lime water milky.

Further when excess of carbon dioxide gas is passed then calcium hydrogen carbonate is formed which is insoluble parts the solution turns colorless

Hope it helps you

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