Experiment 4.2 Chemistry Form 4 -

Reactivity decreases down Group 17: Cl > Br > I Chlorine can displace bromine & iodine; bromine can displace iodine only.

| Halogen \ Halide | KCl | KBr | KI | |----------------|-----|-----|-----| | Chlorine water | No reaction | Turns orange (Br₂) | Turns brown (I₂) | | Bromine water | No reaction | No reaction | Turns brown (I₂) | | Iodine water | No reaction | No reaction | No reaction | experiment 4.2 chemistry form 4

#ChemistryForm4 #Experiment4_2 #Halogens #DisplacementReaction #SPM Reactivity decreases down Group 17: Cl > Br