The bond order and magnetic property of acetylide ion are same as that of

The bond order and magnetic property of acetylide ion are same as that of
  1. O2+
  2. N2+
  3. NO+
  4. O2-

Solution

The bond order of the acetylide ion HCC- is 3, indicating a triple bond between the carbon atoms.

The acetylide ion consists of two carbon atoms with a triple bond between them and a negative charge. In the triple bond, there are six bonding electrons (two pi bonds and one sigma bond) and zero antibonding electrons.

Among the given options NO+ will have the same bond order and magnetic property like acetylide ion.

Species Bond Order Magnetic moment
HCC- 3 0
O2+ 2.5 3 B.M
N2+ 2.5 3 B.M
NO+ 3 0
O2- 1.5 3 B.M

Asked in: JEE Main 2023 (12 Apr Shift 1)

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