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waste gases cntaining sulphur dioxide are passed through a mixture of water and calcium carbonate 2 remove the sulphur dioxide.explain the action in water and CaCO3.
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Waste gases are passed through..
- Thread starter yousawinner
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CaCO3 reacts with SO2 to form CaSO3, which is then oxidised by atmospheric O2 to CaSO4 (which can be used for other purposes). Hence SO2, which is a harmful gas, is removed from the waste gases. The process is called 'desulfurisation of flue gases'.