Q: Which of the following reagents can be used to distinguish aq. bromine from aq. iodine?
A. Aq. Chlorine
B. Aq. Sodium Chloride
C. Aq. Sodium Thiosulphate
D. Aq. iron(II) sulphate, followed by aq. sodium hydroxide.
Oh. nvm. answer is D, cos iodine cannot oxidise Fe2+. Must use E° cell.