A) \[P\]
B) \[C\]
C) \[Hg\]
D) \[S\]
E) \[Sn\]
Correct Answer: B
Solution :
Only carbon reacts with cone\[{{H}_{2}}S{{O}_{4}}\]to give two different gases \[C+\underset{(cone)}{\mathop{2{{H}_{2}}S{{O}_{4}}}}\,\xrightarrow{{}}C{{O}_{2}}+2S{{O}_{2}}+2{{H}_{2}}O\] While other elements react with cone\[{{H}_{2}}S{{O}_{4}}\] with the evolution of only one type of gas.
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