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

Question

Consider the change in oxidation state of Bromine corresponding to different emf values as shown in the diagram below Then the species undergoing disproportionation is, B r 2, B r O 4 -, B r O 3 -, HBrO

MARKS App · Accepted Answer

H B r O + 1 → B r 2 0 , E H B r O / B r 2 0 = 1.595 V H B r O + 1 → B r + 5 O 3 - , E B r O 3 - / H B r O 0 = 1.5 V E c e l l 0 for the disproportionation of HBrO, E c e l l 0 = E H B r O / B r 2 0 - E B r O 3 - / H B r O 0 = 1.595 - 1.5 = 0.095 V = + v e Hence, option (C) is correct answer as E c e l l 0 is positive in it.

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