For the reaction of sodium bromide with chlorine gas to form sodium chloride and bromine, the appropriation half-reactions are (ox = oxidation and re = reduction)

Question

Quizplus · Accepted Answer

The appropriate half-reactions must involve the species being oxidized and reduced. In this case, chlorine is being reduced, gaining electrons to form chloride ions, and bromide is being oxidized, losing electrons to form bromine. The correct half-reactions are:
ox: Cl2 + 2e- -> 2Cl-
re: 2Br- -> Br2 + 2e-
Therefore, the correct choice is B, which includes these half-reactions. Choices A, C, D, and E do not have the correct half-reactions.

For the Reaction of Sodium Bromide with Chlorine Gas to Form