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

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

1.	Some oxidation reactions of emthane are given below. Which of them is/are controlled oxidation reactions ?
Answer» `CH_(4(g)) + 2O_(2(g)) rarr CO_(2(g)) + 2H_(2)O_((L))` `CH_(4(g)) + O_(2(g)) rarr C_((s)) + 2H_(2)O_((l))` `CH_(4(g)) + O_(2(g)) overset(Mo_(2)O_(3))rarr HCHO + H_(2)O` `2CH_(4(g)) + O_(2(g)) overset("Cu/523/100 atm")rarr 2CH_(3)OH` Solution :Alkanes on COMBUSTION give `CO_(2)` and `H_(2)O`. Combustion in insufficient supply of air or `O_(2)` given CARBON black and water. Alkanes on heating with regular supply of oxygen or in controlled WAY give HCHO and `CH_(3)OH`. `CH_(4(g))+O_(2(g))overset(Mo_(2)O_(3))rarr HCHO + H_(2)O` `2HC_(4) + O_(2(g)) overset("Cu, 523 K, 100 atm")rarr 2CH_(3)OH`