Environmental Chemistry Ques 10
10. Roasting of sulphides give the gas $X$ as a by product. This is colorless gas with choking smell of burnt sulphur and caused great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic, acts as a reducing agent and its acid has never been isolated. The gas $X$ is :
[NEET 2013]
(a) $\mathrm{SO}_2$
(b) $\mathrm{CO}_2$
(c) $\mathrm{SO}_3$
(d) $\mathrm{H}_2 \mathrm{~S}$
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Answer:
Correct Answer: 10.(a)
Solution: (a) Based on the features given, gas must be $SO_2$.
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