NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice
Which of the following will have highest bond energy?
Options
- AF 2
- BN 2
- CF 2 -
- DO 2 -
Correct answer
B. N 2
Step-by-step solution
F 2 = σ 1 s 2 σ * 1 s 2 , σ 2 s 2 , σ * 2 s 2 , σ 2 p z 2 , π 2 p x 2 , π 2 p y 2 , π * 2 p x 2 , π * 2 p y 2 F 2 - = σ 1 s 2 σ * 1 s 2 , σ 2 s 2 , σ * 2 s 2 , σ 2 p z 2 , π 2 p x 2 , π 2 p y 2 , π * 2 p x 2 , π * 2 p y 2 σ * 2 p z 1 O 2 - = σ 1 s 2 σ * 1 s 2 , σ 2 s 2 , σ * 2 s 2 , σ 2 p z 2 , π 2 p x 2 , π 2 p y 2 , π * 2 p x 2 , π * 2 p y 1 N 2 = σ 1 s 2 σ * 1 s 2 , σ 2 s 2 , σ * 2 s 2 , π 2 p x 2 , π 2 p y 2 , σ 2 p z 2 B.O. of N 2 = 10 - 4 2 = 3 O 2 - = 10 - 7 2 = 1.5 F 2 = 10 - 8 2 = 1 F 2 - = 10 - 9 2 = 0.5