Which equation(s) represent the incomplete combustion of methane

CHEMISTRY · Single correct · A Level · Chemistry · Alkanes · Alkanes

Problem

Which equation(s) represent the incomplete combustion of methane? I. CH4(g)+2O2(g)→CO2(g)+2H2O(g)\text{CH}_4(\text{g})+2\text{O}_2(\text{g})\rightarrow\text{CO}_2(\text{g})+2\text{H}_2\text{O}(\text{g}) II. CH4(g)+32O2(g)→CO(g)+2H2O(g)\text{CH}_4(\text{g})+\frac{3}{2}\text{O}_2(\text{g})\rightarrow\text{CO}(\text{g})+2\text{H}_2\text{O}(\text{g}) III. CH4(g)+O2(g)→C(s)+2H2O(g)\text{CH}_4(\text{g})+\text{O}_2(\text{g})\rightarrow\text{C}(\text{s})+2\text{H}_2\text{O}(\text{g}) (1) I, II and III (2) II and III only (3) III only (4) II only

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