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Controlled oxidation of alkanes. |
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Answer» Solution :Alkanes on heating with a regulated supply of dioxygen or air at high pressure and in the presence of suitable catalyse give a variety of oxidation products. (i) `UNDERSET("Methane")(2CH_(4))+O_(2) underset("100 atm.")overset(cu 573 K)rarr underset("Methanol")(2CH_(3)OH)` ...(i) (ii) `CH_(4) + O_(2) overset(Mn_(2)O_(3), Delta)rarr underset("Methanol")(HCHO)+H_(2)O` ...(ii) (iii) `underset("Ethane")(3CH_(3)CH_(3))+3O_(2) underset(Delta)overset((CH_(3)COO)_(2)Mn)rarr underset("ETHANOIC ACID")2CH_(3)COOH + 2H_(2)O` ...(iii) (iv) Ordinarily alkanes resist oxidation but alkanes having tertiary H atom can be oxidized to corresponding alcohols by potassium permanganate. `underset("2-Methylpropane")((CH_(3))_(3)CH)underset(+(O))overset(KMnO_(4))rarr underset("2Methylpropane-2-ol")((CH_(3))_(3)C-OH)` ..(iv) |
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