Chemistry 5070 · O Level · Alkanes

Alkanes — practice question

A reaction takes place between chlorine and methane. Which row is the correct one?

  • A$\text{Cl}_2 + \text{CH}_4 \rightarrow \text{CH}_2\text{Cl}_2 + \text{H}_2$; methane and chlorine gases are mixed in the presence of ultraviolet light
  • B$\text{Cl}_2 + \text{CH}_4 \rightarrow \text{CH}_2\text{Cl}_2 + \text{H}_2$; methane is bubbled into concentrated aqueous chlorine
  • C$\text{Cl}_2 + \text{CH}_4 \rightarrow \text{CH}_3\text{Cl} + \text{HCl}$; methane and chlorine gases are mixed in the presence of ultraviolet light
  • D$\text{Cl}_2 + \text{CH}_4 \rightarrow \text{CH}_3\text{Cl} + \text{HCl}$; methane is bubbled into concentrated aqueous chlorine

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