A) sulphur trioxide and water
B) hydrogen and sulphurous acid
C) sulphur and water
D) hydrogen peroxide and sulphur.
Correct Answer: C
Solution :
On mixing aq. solution of \[{{H}_{2}}S\] and\[S{{O}_{2}}\] \[\underset{(aq.)}{\mathop{2{{H}_{2}}S+S{{O}_{2}}}}\,\xrightarrow{{}}2{{H}_{2}}O+3S\] Here, \[S{{O}_{2}}\] acts as an oxidising agent and oxidises moist \[{{H}_{2}}S\] to S.
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