MCQ
The number of species from the following which are paramagnetic and with bond order equal to one is___________

$\mathrm{H}_2, \mathrm{He}_2^{+}, \mathrm{O}_2^{+}, \mathrm{N}_2^{2-}, \mathrm{O}_2^{2-}, \mathrm{F}_2, \mathrm{Ne}_2^{+}, \mathrm{B}_2$

  • A
    $3$
  • B
    $7$
  • C
    $6$
  • $1$

Answer

Correct option: D.
$1$
d
  $Magnetic \ behaviour$ $Bond order$
$\mathrm{H}_2$ Diamagnetic $1$
$ \mathrm{He}$ Paramagnetic $0.5$
$ \mathrm{O}_2^{+}$ Paramagnetic $2.5$
$ \mathrm{N}_2^{2-}$ Paramagnetic $2$
$\mathrm{O}_2^{2-}$ Diamagnetic $1$
$ \mathrm{F}_2$ Diamagnetic $1$
$ \mathrm{Ne}_2^{+}$ Paramagnetic $0.5$
$ \mathrm{B}_2$ Paramagnetic $1$

 

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free