Number of paramagnetic oxides among the following given oxides is ..... .

$\mathrm{Li}_{2} \mathrm{O}, \mathrm{CaO}, \mathrm{Na}_{2} \mathrm{O}_{2}, \mathrm{KO}_{2}, \mathrm{MgO}$ and $\mathrm{K}_{2} \mathrm{O}$

  • [JEE MAIN 2021]
  • A

    $1$

  • B

    $2$

  • C

    $3$

  • D

    $0$

Similar Questions

Match $List-I$ with $List-II$.

$List-I$ $List-II$
$(A)$ $\Psi_{ MO }=\Psi_{ A }-\Psi_{ B }$ $(I)$ Dipole moment
$(B)$ $\mu=Q \times I$ $(II)$ Bonding molecular orbital
$(C)$ $\frac{N_{b}-N_{a}}{2}$ $(III)$ Anti-bonding molecualr orbital
$(D)$ $\Psi_{ MO }=\Psi_{ A }+\Psi_{ B }$ $(IV)$ Bond order

 

  • [JEE MAIN 2022]

In $O_2^-$ , $O_2$ and $O_2^{2-}$ , the total number of antibonding electrons respectively are

The bond order of $NO$ molecule is

Which one of the following is paramagnetic

Which of the following molecular orbitals has maximum number of nodal planes ?