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 –3,

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 –3, +3 and +5. (C) Nitrogen has unique ability to form p–p 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.

(A) (A), (B), (D) only
(B) (A), (C), (E) only
(C) (B), (D), (E) only
(D) (D) and (E) only

Prashant Kotian · Accepted Answer

Correct answer: D. (D) Due to inert pair effect lower oxidation state is more stable. (E) Nitrogen belongs to 2nd period and cannot expand its octet. $//(1®

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