MCQ
Which of the following is paramagnetic
  • $O_2^ + $
  • B
    $C{N^ - }$
  • C
    $CO$
  • D
    ${N_2}$

Answer

Correct option: A.
$O_2^ + $
(a) $B.O. =$ $\frac{1}{2}[10 - 5] = \frac{5}{2} = 2.5$, paramagnetic

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