1.

Consider the change in oxidation state of Bromine corresponding to different emf values as shown in the diagram below : BrO_(4)^(-) overset(1.82 V)(rarr)BrO_3^(-) overset(1.5V)(rarr) HBrO overset(1.595V)(rarr)Br_2 overset(1.0652V)(rarr)Br^(-) Then the species undergoing disproportional is .................. .

Answer»

`Br_2`
`BrO_4^-`
`BrO_3^-`
`HBrO`

Solution :
`(E_("CELL"))_A = -1.82 + 1.5 = -0.32 V`
`(E_("cell"))_B = -1.5 + 1.595 = +0.095 V`
`(E_("cell"))_C = 1.595 + 1.0652 = -0.529 V`.
`:.` The species undergoing disproportional is `HBrO`


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