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Q.

Elements of group- 15 form compounds in +5 oxidation state. However, bismuth forms only one well characterized compound in +5 oxidation state. The compound is

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a

Bi2O5

b

BiF5

c

BiC15

d

Bi2S5

answer is B.

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Detailed Solution

Due to inert pair effect stability of +3 O.S increases down the group BiF5 exists due to small size and high electronegativity of F-atom.
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