In which of the following, both magnetic moment and bond order decrease?

Question

In which of the following, both magnetic moment and bond order decrease? (A) O2- arrow O22- (B) CO⊕ arrow CO (C) N2 arrow N2+ (D) Both (1) and (2)

Tardigrade Admin · Accepted Answer

Bond order of CO+=3.5 (Paramagnetic) Bond order of CO=3 (Diamagnetic) Bond order of O2-=1.5 (Paramagnetic) Bond order of O22-=1 (Diamagnetic) Bond order of N2=3 (Diamagnetic) Bond order of N+2=2.5 (Paramagnetic)

Q. In which of the following, both magnetic moment and bond order decrease?

$O_{2}^{-} \to O_{2}^{2 -}$

$C O^{\oplus} \to CO$

$N_{2} \to N_{2}^{+}$

Both (1) and (2)

Bond order of $C O^{+} = 3.5$ (Paramagnetic)
Bond order of $CO = 3$ (Diamagnetic)
Bond order of $O_{2}^{-} = 1.5$ (Paramagnetic)
Bond order of $O_{2}^{2 -} = 1$ (Diamagnetic)
Bond order of $N_{2} = 3$ (Diamagnetic)
Bond order of $N_{2}^{+} = 2.5$ (Paramagnetic)

Q. In which of the following, both magnetic moment and bond order decrease?

O2−​→O22−​

CO⊕→CO

N2​→N2+​

Both (1) and (2)

Bond order of CO+=3.5 (Paramagnetic) Bond order of CO=3 (Diamagnetic) Bond order of O2−​=1.5 (Paramagnetic) Bond order of O22−​=1 (Diamagnetic) Bond order of N2​=3 (Diamagnetic) Bond order of N2+​=2.5 (Paramagnetic)

$O_{2}^{-} \to O_{2}^{2 -}$

$C O^{\oplus} \to CO$

$N_{2} \to N_{2}^{+}$

Bond order of $C O^{+} = 3.5$ (Paramagnetic)
Bond order of $CO = 3$ (Diamagnetic)
Bond order of $O_{2}^{-} = 1.5$ (Paramagnetic)
Bond order of $O_{2}^{2 -} = 1$ (Diamagnetic)
Bond order of $N_{2} = 3$ (Diamagnetic)
Bond order of $N_{2}^{+} = 2.5$ (Paramagnetic)