Some oxidation reactions of methane are given below. Which of them is/ are controlled oxidation reactions?

Some oxidation reactions of methane are given below. Which of them is/

1.	Some oxidation reactions of methane are given below. Which of them is/ are controlled oxidation reactions?
Answer» `CH_(4)+ 2O_(2) to CO_(2)(g)+ 2H_(2)O(l)` `CH_(4)+ O_(2) to C(s)+ 2H_(2)O(l)` `CH_(4)+ O_(2) OVERSET(Mo_(2)O_(3)) to HCHO+ H_(2)O` `2CH_(4)+O_(2) overset("Cu//523K//100atm")to 2CH_(3)OH` Solution :In which `CH_(4)`, does not undergo complete combustion to give `CO_(2)` and `H_(2)O`.