1.

what happens when carbon dioxide is passed separately through caustic soda solution and lime water first, in small amount and then in-excess amounts. state your observations​

Answer»

Carbon dioxide PASSED into limewater gives a milky SOLUTION. This is DUE to the insoluble suspension of calcium CARBONATE formed: Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O(l) ... The milkiness disappears since calcium bicarbonate is water-soluble.



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