Group VII contains chlorine, bromine and iodine. Which of the statements below are correct? 1 Iodine has a higher density than chlorine. 2 Iodine can displace chlorine from a solution containing chloride ions. 3 Bromine is a non-metal that exists as diatomic molecules. 4 Chlorine gas has a darker colour than bromine vapour.
- A1 and 2
- B1 and 3
- C2 and 4
- D3 and 4