CAX IG05 Alkali metals and halogens

Is there a colour change when chlorine and potassium chloride solutions mix together? If yes, what is the colour?

• No colour change
• Orange colour appears
• Brown colour appears
• Purple colour appears

Is there a colour change when chlorine and potassium bromide solutions mix together? If yes, what is the colour?

• Orange colour appears
• No colour change
• Brown colour appears
• Purple colour appears

Is there a colour change when chlorine and sodium iodide solutions mix together? If yes, what is the colour?

• Brown colour appears
• Orange colour appears
• No colour change
• Purple colour appears

Is there a colour change when bromine and potassium chloride solutions mix together? If yes, what is the colour?

• No colour change
• Orange colour appears
• Brown colour appears
• Purple colour appears

Is there a colour change when bromine and potassium bromide solutions mix together? If yes, what is the colour?

• No colour change
• Orange colour appears
• Brown colour appears
• Purple colour appears

Is there a colour change when bromine and sodium iodide solutions mix together? If yes, what is the colour?

• Brown colour appears
• No colour change
• No colour change
• Purple colour appears

What is displaced when chlorine reacts with sodium bromide solution?

What is displaced when chlorine reacts with potassium iodide solution?

What is displaced when bromine reacts with potassium iodide solution?

Which is the most reactive?

• Chlorine
• Bromine
• Iodine