In which of the following transformations, the bond order has increased and the magnetic behaviour has changed?

Question

In which of the following transformations, the bond order has increased and the magnetic behaviour has changed? (A) C2+ arrow C2 (B) NO+ arrow NO (C) O2 arrow O2+ (D) N2 arrow N2+

Tardigrade Admin · Accepted Answer

On the basis of molecular orbital theory the value of bond order and magnetic nature can be given as

P a r ama g n e t i c BO = 1.5 C_{2}^{+} \to D iama g n e t i c BO = 2 C_{2}

D iama g n e t i c BO = 3 N O^{+} \to P a r ama g n e t i c BO = 2.5 NO

P a r ama g n e t i c BO = 2 O_{2} \to P a r ama g n e t i c BO = 2.5 O_{2}^{+}

D iama g n e t i c BO = 3 N_{2} \to P a r ama g n e t i c BO = 2.5 N_{2}^{+}

Q. In which of the following transformations, the bond order has increased and the magnetic behaviour has changed?

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

$N O^{+} \to NO$

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

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

Q. In which of the following transformations, the bond order has increased and the magnetic behaviour has changed?

C2+​→C2​

NO+→NO

O2​→O2+​

N2​→N2+​

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

$N O^{+} \to NO$

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

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