The equation below represents the reaction between a halogen and aqueous bromide ions. $X_2 + 2Br^- \rightarrow 2X^- + Br_2$ Which words fit gaps 1, 2 and 3?
- Achlorine; brown; colourless
- Bchlorine; colourless; brown
- Ciodine; brown; colourless
- Diodine; colourless; brown