Chemical Bonding and Molecular Structure - Result Question 123
####127. Which of the following species is paramagnetic?
(a) $O_2^{2-}$
(b) NO
(c) $CO$
(d) $CN^{-}$
[1995]
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Solution:
- (b) The structure of NO:
${ }^{*} N=\ddot{0}$
In $NO$, the presence of unpaired electron is clear. Therefore, it is paramagnetic.