Using molecular orbital theory predict the correct decreasing bond order of the following species 1.O2+ 2.O2- 3.O22 - 4.O22 +

Question

Using molecular orbital theory predict the correct decreasing bond order of the following species 1.O2+ 2.O2- 3.O22 - 4.O22 + (A) 1 > 2 > 3 > 4 (B) 4 > 1 > 2 > 3 (C) 4 > 1 > 3 > 2 (D) 1 > 4 > 2 > 3

Tardigrade Admin · Accepted Answer

Bond order =( textno.of bonding bare - textno. of anti bonding bar texte/2) Bond orders of O2+ text,O2- text,O22 - textandO22 + are respectively 2.5, 1.5, 1 and 3 Hence O22 + has max bond order is O22 + > O2+ > O2- > O22 -

Q. Using molecular orbital theory predict the correct decreasing bond order of the following species

$1. O_{2}^{+}$ $2. O_{2}^{-}$ $3. O_{2}^{2 -}$ $4. O_{2}^{2 +}$

1 > 2 > 3 > 4

4 > 1 > 2 > 3

4 > 1 > 3 > 2

1 > 4 > 2 > 3

Bond order $= \frac{no.of bonding e ˉ - no. of anti bonding e ˉ}{2}$

Bond orders of $O_{2}^{+}, O_{2}^{-}, O_{2}^{2 -} and O_{2}^{2 +}$ are respectively 2.5, 1.5, 1 and 3

Hence $O_{2}^{2 +}$ has max bond order is

$O_{2}^{2 +} > O_{2}^{+} > O_{2}^{-} > O_{2}^{2 -}$

Q. Using molecular orbital theory predict the correct decreasing bond order of the following species 1.O2+​ 2.O2−​ 3.O22−​ 4.O22+​