Question

Which of the following reactions of methane is incomplete combustion?

• A. $2CH_{4} + O\overset{\quad Cu/523k/100atm\quad}{\rightarrow}2CH_{3}OH$
• B. $CH_{4} + O_{2}\overset{\quad Mo_{2}O_{3}\quad}{\rightarrow}HCHO + H_{2}O$
• C. $CH_{4} + O_{2} \rightarrow C_{(s)} + 2H_{2}O_{(l)}$
• D. $CH_{4} + 2O_{2} \rightarrow CO_{2(g)} + 2H_{2}O_{(l)}$

Answer 1

Answer: (C)

$CH_{4} + O_{2} \rightarrow C_{(s)} + 2H_{2}O_{(l)}$

Answer 2

: $CH_{4} + O_{2} \rightarrow C_{(s)} + 2H_{2}O_{(l)}$is incomplete

combustion. In complete combustion, hydrocarbons release $CO_{2}$and $H_{2}O$whereas in this reaction, C and $H_{2}O$are released.