Answers section
Questions 6.5
| Substance | Observations when chlorine gas is bubbled through the substance |
| A solution containing sulphite ions (SO32-) | |
| A solution containing iron (II) ions (Fe2+) | |
| Hydrogen sulphide gas (H2S(g)) | |
| A solution containing bromide ions (Br-(aq)) | |
| A solution containing iodide ions (I-(aq)) |
Answers to Questions 6.5 
| Substance | Observations when chlorine gas is bubbled through the substance |
| A solution containing sulphite ions (SO32-) | Chlorine is decolourized; a colourless solution is formed. |
| A solution containing iron (II) ions (Fe2+) | Colour of the solution changes from green to yellow-brown |
| Hydrogen sulphide gas (H2S(g)) | A yellow solid and colourless solution are formed; chlorine is decolourized. |
| A solution containing bromide ions (Br-(aq)) | A red liquid is formed. The yellow-green colour of chlorine is lost. |
| A solution containing iodide ions (I-(aq)) | A grey solid and brown solution formed. |