COMEDK · Chemistry · 9. Redox Reactions
When a colourless gas is passed through bromine water only decolourisation take place. The gas is
- A \(\mathrm{SO}_2\)
- B HBr
- C HCl
- D \(\mathrm{H}_2 \mathrm{~S}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{SO}_2\)
Step-by-step Solution
Detailed explanation
Bromine water is an oxidising agent. It oxidises \(\mathrm{SO}_2\) to \(\mathrm{SO}_3\) and itself get reduced to colourless HBr .…
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