A water insoluble substance x on reacting with dilute H2So4 release a colourless and odourless gas accompanied bye brisk afervescence when the gas was passed through water the solution obtained turn blue Litmus red. on bubbling the gas through lime water it initially became milky and the milkiness disappeared when the gas was passed in excess identify the substance X and write the chemical equation for the reaction involved
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Sodium carbonate (substance X)on heating with sulphuric acid we get sodium sulphate , CO2 and water
Na2CO3 +H2SO4 ---->Na2SO4 +CO2 +H2O
ON PASSING CO2 gas to lime water it turns milky white due to formation of CaCO3.
Ca(OH)2 +CO2 ---->CaCO3 +H2O
IF EXCESS OF CO2 IS PASSED, the milky white colour disappers due to formation of calciumhydrogen carbonate.
CaCO3+CO2+H2O---->Ca(HCO3)2
Na2CO3 +H2SO4 ---->Na2SO4 +CO2 +H2O
ON PASSING CO2 gas to lime water it turns milky white due to formation of CaCO3.
Ca(OH)2 +CO2 ---->CaCO3 +H2O
IF EXCESS OF CO2 IS PASSED, the milky white colour disappers due to formation of calciumhydrogen carbonate.
CaCO3+CO2+H2O---->Ca(HCO3)2
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