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4.Chemical Bonding and Molecular Structure
easy
Which of the following is not paramagnetic
A
${O_2}$
B
$O_2^{1 + }$
C
$O_2^{2 - }$
D
$O_2^ - $
Solution
(c) Species with unpaired electrons is paramagnetic ${O_2}$ has $2$ unpaired electrons,
$O_2^ – $ has one unpaired, $O_2^{2 – }$ has zero unpaired electrons, $O_2^{1+ }$ has one unpaired.
Standard 11
Chemistry
