According to "molecular orbital theory", which among the following diatomic molecules only has $\pi$-bonds?

Question

Aicharya · Accepted Answer

Molecular orbital configuration of $\mathrm{C}_2$ is $\sigma l s^2 \sigma * 1 s^2 \sigma 2 s^2 \sigma * 2 s^2 \pi 2 p_x^2=\pi 2 p_y^2$ So, $\mathrm{C}_2$ molecule contains only $\pi$-bonds.

According to "molecular orbital theory", which among the following diatomic molecules only has $\pi$-bonds?

Solution