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Describe the chemical reaction of CO_(2) with (a) lime water (b) metals like sodium, potassium and calcium ( c) non-metals like carbon |
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Answer» Solution :(a) Reaction with lime water `(Ca(OH)_(2))`: `CO_(2)` reacts with lime water that is `Ca(OH)_(2)` to form a milky white precipitate that is `CaCO_(3)`. `Ca(OH)_(2)toCaCO_(3)darr` When excess `CO_(2)` is passed through above solution, the presipitate dissolves due to the formation of `Ca(CHO_(3))_(2)` `CaCO_(3)+H_(2)O+CO_(2)TOCA(HCO_(3))_(2)` (b) Reaction with metals: Metals like Na, K and Ca react with `CO_(2)` to form correponding metal carbonates whils Mg and AI GIVE corresponding oxides. `4Na+3CO_(2)to2Na_(2)CO_(3)+C` `2Mg+CO_(2)to2MgO+C` (c ) Reaction with non-metals : `CO_(2)` when reats with red hot COKE reduced to CO , a very poisonous gas. `C+underset(("Coke"))(CO_(2))overset(Delta)(to)2CO` |
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