JEE Main 2022 · 24 Jun · Shift 2 · Chemistry Q63

ChemistrySingle correct+4 / -1Question 63 of 90

The correct order of bond orders of $\mathrm{C_2^{2-}}$ , $\mathrm{N_2^{2-}}$ and $\mathrm{O_2^{2-}}$ is, respectively

\mathrm{C_2^{2-}<N_2^{2-}<O_2^{2-}}

\mathrm{O_2^{2-}<N_2^{2-}<C_2^{2-}}

\mathrm{C_2^{2-}<O_2^{2-}<N_2^{2-}}

\mathrm{N_2^{2-}<C_2^{2-}<O_2^{2-}}

Answer and worked solution

Official answer: B

Electron counts and MO bond orders.

Order. $\mathrm{O_2^{2-}<N_2^{2-}<C_2^{2-}}$ .

(B)

Topics:Molecular orbital theory

JEE Main 2022 · 24 Jun · Shift 2, Chemistry question 63