Molecular Orbitals of Nitrogen

Q. The total number of electrons in all bonding molecular orbitals of $O_2^{2-}$ is
(JEE (MAIN)-2021)

Q. Which of the following pairs of species have the same bond order?

1. $CO,NO$
2. $O_2,N{O}^{+}$
3. $C{N}^{-},CO$
4. $N_2,O_2^{-}$

Q. The correct order of energies of d-orbitals of metal ions in a square planar complex is :

1. $d_{x^2-y^2}>d_{xy}>d_{z^2}>d_{zx}=d_{yz}$
2. $d_{x^2-y^2}>d_{z^2}>d_{xy}=d_{yz}=d_{zx}$
3. $d_{xy}=d_{yz}=d_{zx}>d_{x^2-y^2}=d_{x^2}$
4. $d_{x^2-y^2}=d_{z^2}>d_{xy}=d_{yz}=d_{zx}$

Q.

Let the bond order of ${O_2}^{2-}$ be X and that of $CO$ be Y. Then the value of XY is _____?

1. 2

2. 6

3. 3

4. 4

Q. The number of $\pi$ bonds in a nitrogen atom is .

1. 1
2. 2
3. 3

Q. The species having bond order different from that of CO is

1. ${NO}^{-}$
2. ${NO}^{+}$
3. ${CN}^{-}$
4. $N_2$

Q. The number of $\pi$ bonds in a nitrogen atom is .

1. 1
2. 2
3. 3