Q. 16

Elements of group A. Bi₂O₅

B. BiF₅

C. BiCl₅

D. Bi₂S₅

Class 12th Chemistry - Exemplar 7. The p-block Elements

Answer :

Bismuth commonly shows +3 oxidation state instead of +5 oxidation state due to inert pair effect (recultance of s electrons to take part in bond formation)

But fluorine has small size and high electronegativity than oxygen, chlorine and sulphur.

Therefore bismuth forms BiF₅ and show +5 oxidation state.

Hence the correct option (ii).

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Elements of group A. Bi2O5B. BiF5C. BiCl5D. Bi2S5

Elements of group A. Bi₂O₅

B. BiF₅

C. BiCl₅

D. Bi₂S₅