Thiosulfate ions, $\text{S}_2\text{O}_3^{2-}$, undergo reaction with iodine, $\text{I}_2$, in aqueous solution. $2\text{S}_2\text{O}_3^{2-}(aq) + \text{I}_2(aq) \rightarrow 2\text{I}^-(aq) + \text{S}_4\text{O}_6^{2-}(aq)$ During this reaction, the $\text{S}_2\text{O}_3^{2-}$ ions ........1........ electrons and are ........2........ . Which words best fill gaps 1 and 2?
- Again, oxidised
- Bgain, reduced
- Close, oxidised
- Dlose, reduced