Consider the change in oxidation state of Bromine corresponding to different emf values, as shown in the diagram below:

Then, what is the species undergoing disproportionation?

Question

Consider the change in oxidation state of Bromine corresponding to different emf values, as shown in the diagram below: Then, what is the species undergoing disproportionation?

Aicharya · Accepted Answer

Calculate E cell o corresponding to each compound undergoing disproportionation reaction. The reaction for which E cell o comes out +ve is spontaneous. HBrO → B r 2 E o = 1.595 , S R P Cathode 2 HBrO → B r 2 + B r O 3 - E c e l l o = SRP (cathode) - SRP (Anode) = 1.595 - 1.5 = 0 .095 V E cell o > 0 ⇒ Δ G o < 0 [spontaneous]

Consider the change in oxidation state of Bromine corresponding to different emf values, as shown in the…

Solution