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 (g) +2O_2(g) to CO_2 (g) + 2H_2O (l)` `CH_4(g) + O_2 (g) to C (s) + 2H_2O(l)` `CH_4(g) + O_2(g) overset(Mo_2O_3)to HCHO + H_2O` `2CH_4(g) + O_2 overset"Cu/523 K/100 atm"to 2CH_3OH` SOLUTION :Reaction (c ) and (d) in which `CH_4` does not UNDERGO complete combustion to give `CO_2` and `H_2O` or INCOMPLETE combustion to C and `H_2O` are CONTROLLED oxidation reactions.