AP EAPCET 07-Jul-2022 Shift 1 Paper

The peroxide ion in sodium peroxide is O22− has total of 18 electrons. Electronic configuration of O22− is
σls2,σ*1s2,σ2s2,σ*2s2,π2pz2,π2px2≈π2py2,
π*2px2≈π*2py2
Bond order
‌=‌

1

2

...[No.of‌bonding−No.of‌non−bonding‌orbital‌electrons‌orbital‌electrons]
‌=‌

1

2

[10−8]=1
The superoxide in potassium superoxide is O2−has total of 17 electrons.
Electronic configuration of O2−is
σ1s2,σ×1s2,σ2s2,σ×2s2,π2pz2,π2px2≈π2py2 π×2px2≈π×2py1
Bond order =‌

1

2

(10−7)=1.5