When chlorine is bubbled into potassium iodine solution ____________
A. a white precipitate is seen B. reddish brown colour develops C. solution remains colourless D. blue colour is seen
Correct Answer: D
Explanation
Displacement power of halogens is in the order \(F > Cl\) \(Br > T\). It means fluorine will displace chlorine which will in turn displace bromine, on like that. When chlorine is bubbled into potassium iodide solution, iodine will be displaced. This manifests by appearance of dark blue colouration which is the colour of iodine.