A) \[2{{H}_{2}}+{{O}_{2}}\to 2{{H}_{2}}O\]
B) \[C+{{O}_{2}}\to C{{O}_{2}}\]
C) \[CuS{{O}_{4}}+Fe\to FeS{{O}_{4}}+Cu\]
D) \[2Na+C{{l}_{2}}\to 2NaCl\]
E) None of these
Correct Answer: C
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