A) \[C{{O}_{2}}+2{{H}_{2}}O+heat\]
B) \[C{{O}_{2}}+{{H}_{2}}\]
C) \[CO+{{O}_{2}}\]
D) \[C{{O}_{2}}+{{O}_{2}}+heat\]
Correct Answer: A
Solution :
Fuels and hydrocarbons burn in oxygen and form \[C{{O}_{2}}+2{{O}_{2}}\to C{{O}_{2}}+2{{H}_{2}}O+heat\]and give out heat. \[C{{H}_{4}}+2{{O}_{2}}\to C{{O}_{2}}+2{{H}_{2}}O+heat\]
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