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What happen when CO2 is passed through...

What happen when
`CO_2` is passed through slaked lime

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Slaked lime ,`Ca(OH)_(2)` Is turned milky on passing `CO_(2)` with the formation of insoluble calcium carbonate `Ca(OH)_(2)+CO_(2)toCaCO_(3)+H_(2)O` on passing more `CO_(2),CaCO_(3)` is converted into calcium bicarbonate .
`CaCO_(2)+H_(2)O+CO_(2)toCa(HCO_(3))_(2)`
b) `CaC_(2)` on heating with `N_(2)` gives calcium cyanamide
`CaC_(2)+N_(2)overset(Delta)to(CaN_(2)+C)/("nitrolim")`
Calcium cyanamide
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