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Identify correct statements from the following.
A) Nitrogen cannot show pentavalency.
B) Nitrogen cannot show +5 oxidation state in its compounds.
C) Boron cannot show +3 oxidation state in its compounds.
D) Boron cannot form trivalent cations.

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A and D only

A, B, C and D

A, C and D only

A and C only

answer is D.

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Detailed Solution

A) Nitrogen cannot show pentavalency…… Non availability of vacant orbitals.

B) Nitrogen can show +5 oxidation state in its compounds…… N₂O₅.

C) Boron can show +3 oxidation state in its compounds……… BF₃.

D) Boron cannot form trivalent cations…… Sum of IP₁, IP₂ and IP₃ is very high.

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