A) \[\text{S}{{\text{O}}_{3}}\]
B) \[{{H}_{2}}S\]
C) \[{{O}_{2}}\]
D) \[S{{O}_{2}}\]
Correct Answer: D
Solution :
\[Cu+2{{H}_{2}}S{{O}_{4}}\xrightarrow{\text{heat}}CuS{{O}_{4}}+S{{O}_{2}}+2{{H}_{2}}O\] Therefore, copper turning on heating with concentrated \[{{H}_{2}}S{{O}_{4}}\]produces \[S{{O}_{2}}.\] Hence, the correct option is (d).
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