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Question
Discuss industrial method of preparation of sulfur dioxide from zinc sulfide and iron pyrites.
Solution
\[\ce{\underset{\text{Zinc sulfide}}{2ZnS_{(s)}} + 3O_{2(g)} ->[\Delta] 2ZnO_{(s)} + \underset{\text{Sulfur dioxide}}{2SO_{2(g)}}}\]
\[\ce{\underset{\text{Iron pyrites}}{4FeS_{2(s)}} + 11O_{2(g)} ->[Delta] 2Fe2O_{3(s)} + \underset{\text{Sulfur dioxide}}{8SO_{2(g)}}}\]
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