Among $\mathrm{H}_2, \mathrm{He}_2^{+}, \mathrm{Li}_2, \mathrm{Be}_2, \mathrm{~B}_2, \mathrm{C}_2, \mathrm{~N}_2, \mathrm{O}_2^{-}$, and $\mathrm{F}_2$, the number of diamagnetic species is (Atomic numbers: $\mathrm{H}=1, \mathrm{He}=2, \mathrm{Li}=3, \mathrm{Be}=4, \mathrm{~B}=5, \mathrm{C}=6, \mathrm{~N}=7, \mathrm{O}=8, \mathrm{~F}=9$ )

  • [IIT 2017]
  • A

    $4$

  • B

    $8$

  • C

    $6$

  • D

    $5$

Similar Questions

Which one of the following is paramagnetic

Which of the following species show maximum ionisation energy and nodal plane

Explain energy level diagram for molecular orbital form by $1\mathrm{s}$ orbitals.

Which of the following species is paramagnetic?

Match each of the diatomic molecules in Column $I$ with its property / properties in Column $II$.

Column $I$ Column $II$
$(A)$ $\mathrm{B}_2$ $(p)$ Paramagnetic
$(B)$ $\mathrm{N}_2$ $(q)$ Undergoes oxidation
$(C)$ $\mathrm{O}_2^{-}$ $(r)$ Undergoes reduction
$(D)$ $\mathrm{O}_2$ $(s)$ Bond order $\geq 2$
  $(t)$ Mixing of ' $\mathrm{s}$ ' and ' $\mathrm{p}$ ' orbitals

  • [IIT 2009]