Chemistry 9701 · AS & A Level · Electrochemistry

Electrochemistry — practice question

When chlorine gas is introduced into cold aqueous sodium hydroxide, one reaction occurs. In a different experiment, chlorine gas is introduced into hot aqueous sodium hydroxide. Which oxidation states of chlorine appear in the reactants and products for the two reactions that occur?

  • A0, $-1$, $+1$ and $+5$
  • B0, $-1$ and $+1$ only
  • C0, $-1$ and $+5$ only
  • D0, $+1$ and $+5$ only

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