Why is Bi(V) stronger oxidant thanSb(V)?

1.	Why is Bi(V) stronger oxidant thanSb(V)?
Answer» For Bi +3 is more stable as compared to Sb. Inert pair effect being the reason. So bi has more tendency to get reduced so better oxidising agent Due to the inert pair effect, Sb and Bi are more stable in +3 oxidation state as compared to the +5 state. But due to the presence offorbital electrons in Bi, its +3 is more stable than Sb(+3).That is why, Bi(V) tends to achieve Bi(III) state (i.e. reduction of Bi) for greater stability easily as compared to the Sb. since Bi (V) is undergoing self reduction, hence it is a stronger oxidising agent then Sb(V).

Answer»

For Bi +3 is more stable as compared to Sb. Inert pair effect being the reason. So bi has more tendency to get reduced so better oxidising agent

Due to the inert pair effect, Sb and Bi are more stable in +3 oxidation state as compared to the +5 state. But due to the presence offorbital electrons in Bi, its +3 is more stable than Sb(+3).That is why, Bi(V) tends to achieve Bi(III) state (i.e. reduction of Bi) for greater stability easily as compared to the Sb. since Bi (V) is undergoing self reduction, hence it is a stronger oxidising agent then Sb(V).

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