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Question

What happens when sulphur dioxide is dissolved in water?

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Solution

Sulfur Dioxide

  • Sulfur dioxide is also known as sulfurous anhydride, sulfurous acid anhydride, or sulfur oxide and has the chemical formula SO2.
  • Sulfur dioxide was discovered by the Romans during the process of winemaking.
  • It is an easily liquifiable colourless gas and has a pungent smell of rotten eggs.

Reaction

  • Sulfur dioxide reacts with water to form sulfurous acid (H2SO3) as the product.
  • The chemical reaction is as follows,

SO2(g)+H2O(l)H2SO3(l)


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