Which of the following reactions is not exothermic [MP PET 2002]

1.	Which of the following reactions is not exothermic [MP PET 2002]
A.	\[C(s)+{{O}_{2}}(g)\,\to \,C{{O}_{2}}(g)\]
B.	\[C(s)+2S(s)\,\to \,C{{S}_{2}}(g)\]
C.	\[C{{H}_{4}}(g)+2{{O}_{2}}(g)\,\to \,C{{O}_{2}}(g)+2{{H}_{2}}O(l)\]
D.	\[CO(g)+\frac{1}{2}{{O}_{2}}(g)\,\to \,C{{O}_{2}}(g)\]
Answer» C. \[C{{H}_{4}}(g)+2{{O}_{2}}(g)\,\to \,C{{O}_{2}}(g)+2{{H}_{2}}O(l)\]

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