I can never get these questions right on practice exam papers because I just don't get it and then I mix all my colors up!
For example, if you bubble potassium iodide solution through chlorine apparently it turns brown because 'Cl has displaced I.' But I thought Cl was pale green? So why has it gone brown if Cl is more reactive?
Sorry, I know I must sound utterly stupid.
Can someone explain these halogen reactions please? Watch
- Thread Starter
- 07-01-2015 16:22
- 07-01-2015 17:31
I don't really understand the question but chlorine on its own is green but if you have a solution which contains chlorine it wont always be green due to the other molecules in the compound. Its like mixing two colours together!