What is the gas evolved when dilute hcl reacts with sodium hydrogen carbonate and how is that gas recognized?
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Carbon dioxide gas evolved when dilute hcl reacts with sodium hydrogen carbonate .
We recognize the presence of carbon dioxide by passing it through lime water which turns milky or a white precipitate of calcium carbonate .
We recognize the presence of carbon dioxide by passing it through lime water which turns milky or a white precipitate of calcium carbonate .
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HCl + NaHCO3 gives NaCl + CO2 + H2O
The gas can be passed over a flame to check whether the flame is extinguished or not, as CO2 does the same.
There u go....
Hope it helped....
The gas can be passed over a flame to check whether the flame is extinguished or not, as CO2 does the same.
There u go....
Hope it helped....
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