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Will sulfite react with hydrochloric acid?
Sulfite reacts with hydrochloric acid.
Equation: 2agso3+2hcl = = 2agcl+H2O+2so2.
Sulfite ion is a kind of chemical particle with the chemical formula of SO3, which belongs to weakly acidic free radical and has strong reducibility.
In acidified nitrate solution, sulfite will be converted into sulfate ion. But if there are only sulfite ions and nitrate ions in the solution without hydrogen ions, sulfur will not be oxidized.
Test method: concentrated sulfuric acid, magenta solution-colorless irritating gas (blue wet litmus paper turns red), magenta solution temporarily fades.
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