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Aqueous solution of hydrogen sulphide and sulphur dioxide when mixed together ,yield
  • a)
    Sulphur and Water
  • b)
    Hydrogen peroxide and sulphur
  • c)
    Sulphur trioxide and water
  • d)
    Hydrogen and sulphurous acid
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Aqueous solution of hydrogen sulphide and sulphur dioxide when mixed t...
Sulfur dioxide is reduced by hydrogen sulfide to give elemental sulfur at 90 C. 2H2​S+SO2​ heat 3S+2H2​O
Community Answer
Aqueous solution of hydrogen sulphide and sulphur dioxide when mixed t...


Formation of Sulphur and Water:

- When aqueous solutions of hydrogen sulphide (H2S) and sulphur dioxide (SO2) are mixed together, a redox reaction takes place.
- Hydrogen sulphide is oxidized by sulphur dioxide in the presence of water to form elemental sulphur (S) and water (H2O).
- The balanced chemical equation for the reaction is:
H2S + SO2 → S + H2O

Explanation:

- In the reaction, hydrogen sulphide is oxidized to form elemental sulphur, which is observed as a yellow precipitate in the solution.
- The sulphur dioxide acts as the oxidizing agent and gets reduced to form sulphur.
- Water is also formed as a product of the reaction.
- This reaction is a common laboratory test for the presence of sulphur compounds, as the formation of elemental sulphur is a characteristic reaction of sulphur compounds.

Conclusion:

- Therefore, when an aqueous solution of hydrogen sulphide and sulphur dioxide are mixed together, the products formed are elemental sulphur and water.
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Aqueous solution of hydrogen sulphide and sulphur dioxide when mixed together ,yielda)Sulphur and Waterb)Hydrogen peroxide and sulphurc)Sulphur trioxide and waterd)Hydrogen and sulphurous acidCorrect answer is option 'A'. Can you explain this answer?
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