Question

What is the product formed when sulphur dioxide is dissolved in water?
A). ${H_2}S{O_3}$
B). ${H_2}S{O_4}$
C). ${H_2}{S_2}{O_7}$
D). None of these

Answer 1

Sulfur dioxide or sulphur dioxide is the compound with the formula SO2. It's a toxic gas liable for the smell of burnt matches. It's released naturally by volcanic activity and is produced as a by-product of copper extraction and therefore the burning of fossil fuels contaminated with sulfur compounds.

Complete answer:
When sulfur dioxide is dissolved in water it forms sulphurous acid.
$S{O_2} + {H_2}O \to {H_2}S{O_3}$
Sulfurous acid may be a good reducer
When sulphur dioxide is dissolved in water it forms sulfurous acid. The chemical equation is shown below. Acid precipitation has sulfurous acid.
The formal charge on the $S{O_2}$ molecule is zero, but the formal charge on each atom depends on the Lewis structure that you simply draw.
Featuring sulfur within the +4 oxidation number, sulphur dioxide may be a reducer . It's oxidized by halogens to offer the sulfuryl halides, like sulfuryl chloride: ... Here, sulphur dioxide is reduced by sulfide to offer elemental sulfur: $S{O_2} + 2{H_2}S \to 3S + 2{H_2}O$
Hence: The option A is correct.

Note:
Sulphur dioxide affects the systema respiratorium, particularly lung function, and may irritate the eyes. Sulphur dioxide irritates the tract and increases the danger of tract infections. It causes coughing, mucus secretion and aggravates conditions like asthma and bronchitis.