JEE Main202125 Jul 2021Evening ShiftChemistryChemical Bonding and Molecular StructureActual
In the following the correct bond order sequence is:
Options
- AO 2 2 - > O 2 + > O 2 - > O 2
- BO 2 + > O 2 - > O 2 2 - > O 2
- CO 2 + > O 2 > O 2 - > O 2 2 -
- DO 2 > O 2 - > O 2 2 - > O 2 +
Correct answer
C. O 2 + > O 2 > O 2 - > O 2 2 -
Step-by-step solution
O 2 ( 16 electrons) σ 1 s 2 , σ 1 s * 2 , σ 2 s 2 , σ 2 s * 2 , σ 2 p 2 2 π 2 p x 2 = π 2 p y 2 , π 2 p x * 1 = π 2 p y * 1 , σ 2 p z * Bond order of O 2 ⇒ 2 Bond order of O 2 - ⇒ 1 . 5 Bond order of O 2 2 - ⇒ 1 Bond order of O 2 + ⇒ 2 . 5