Ncert Exercises & Solutions

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

1. ${CH}_{4} (g) + 2 O_{2} (g) \to {CO}_{2} (g) + 2 H_{2} O (l)$

2. ${CH}_{4} (g) + O_{2} (g) \to Cl (s) + 2 H_{2} O (l)$

3. ${CH}_{4} (g) + O_{2} (g) \overset{{Mg}_{2} O_{3}}{\to} HCHO + H_{2} O$

4. $2 {CH}_{4} (g) + O_{2} (g) \overset{Cu / 523 / 100 atm}{\to} 2 {CH}_{3} OH$

(3, 4)

Alkanes on heating with a regulated supply of dioxygen or air at high pressure and in the presence of suitable catalysts give a variety of oxidation products.

2 {CH}_{4} + O_{2} \overset{Cu / 523 K / 100 atm}{\to} 2 {CH}_{3} OH

{CH}_{4} + O_{2} \to_{∆}^{{Mo}_{2} O_{3}} HCHO + H_{2} O

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