Identify the incorrect statements about group 15 elements:

(A) Dinitrogen is a diatomic gas which acts like an inert gas at room temperature.

(B) The common oxidation states of these elements are ,

Question

Identify the incorrect statements about group 15 elements:

(A) Dinitrogen is a diatomic gas which acts like an inert gas at room temperature.

(B) The common oxidation states of these elements are ,  and .

(C) Nitrogen has unique ability to form  multiple bonds.

(D) The stability of +5 oxidation states increases down the group.

(E) Nitrogen shows a maximum covalency of 6.

Choose the correct answer from the options given below:

Canvas Classes · Accepted Answer

Analysis:

(A) TRUE —  is a diatomic gas that is chemically inert at room temperature due to the very strong N≡N triple bond. ✓

(B) TRUE — Group 15 elements commonly show −3, +3, and +5 oxidation states. ✓

(C) TRUE — N is unique in forming p–p multiple bonds (e.g., N≡N, N=O) due to its small size and availability of 2p orbitals. ✓

(D) FALSE — The stability of +5 oxidation state decreases down the group (inert pair effect makes the ns² electrons reluctant to participate in bonding). Bi(V) is a

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