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Predict whether Tl^(oplus) will dispropo...

Predict whether `Tl^(oplus)` will disproportionate in aqueous solution :
`Tl^(3+) overset (1.25 V) rarr Tl^(oplus) overset (-0.34 V) rarr Tl`.

Text Solution

Verified by Experts

`2TI^(+)+2eto2TI`     `E^(@)` = -0.34 V
`TItoTI^(3+)+2e`    `E^(@)` = -1.25 V
`3TI^(-)to2TI+TI^(3+)`     `E^(@)`= -1.59 V
Negative value of Eo indicates that disproportion is not possible. Thus, Ti is more stable than `TI^(3+)`, hence `TI^(+)` will not oxidize.
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