what is the valency of sulphurous acid
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H2SO3 (SULPHUROUS ACID) ⏭️⏭️⏮️⏮️
Sulfurous acid has a chemical formula of H sub 2 SO sub 3. This compound is formed when sulfur dioxide (SO sub 2) is dissolved in water. It is a weak acid, so it is not as corrosive as strong acids, like hydrochloric acid or sulfuric acid, and it is an oxoacid since it is an acid with oxygen atoms in its chemical formula.
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