A) \[S{{O}_{2}}\]
B) \[S{{O}_{3}}\]
C) \[{{H}_{2}}\]
D) \[{{H}_{2}}S\]
Correct Answer: A
Solution :
The reaction with copper produces sulphur dioxide rather than hydrogen. \[Cu(s)+2{{H}_{2}}S{{O}_{4}}(aq)\to CuS{{O}_{4}}+2{{H}_{2}}O+S{{O}_{2}}\uparrow \]
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