NEETChemistryp Block Elements (Group 15, 16, 17 & 18)
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 f
Options
- A(A), (C), (E) only
- B(B), (D), (E) only
- C(D) and (E) only
- D(A), (B), (D) only
Correct answer
C. (D) and (E) only
Step-by-step solution
(D) Due to inert pair effect lower oxidation state is more stable. (E) Nitrogen belongs to 2^ nd period and cannot expand its octet.