NEET2022ChemistryChemical Bonding and Molecular StructureActual
Which amongst the following is incorrect statement?
Options
- AC 2 molecule has four electrons in its two degenerate π molecular orbitals.
- BH 2 + ion has one electron.
- CO 2 + ion is diamagnetic.
- DThe bond orders of O 2 + ,   O 2 ,   O 2 - and O 2 2 - are 2 . 5 ,   2 ,   1 . 5 and 1 , r
Correct answer
C. O 2 + ion is diamagnetic.
Step-by-step solution
1. Electronic configuration of C 2 molecule is σ   1 s 2 σ * 1 s 2 σ 2 S 2 σ * 2 S 2 π 2 P x 2 = π 2 py 2 Hence it has 4 electrons in π molecular orbitals. 2. H 2 + has one electron as one electron is removed from H 2 molecule. 3. Electronic configuration of O 2 + ion is σ 2 s 2   σ * 2 s 2   σ 2 p 2 2   π 2 P x 2 = π 2 Py 2 π * 2 p x 1 π * 2 P y 0 It has one unpaired electron so it is para-magnetic. 4. Bond orders of O 2 + ,