Chemical Bonding And Molecular Structure Question 335
Question: Which of the following is paramagnetic
Options:
A) $ O_2 $
B) $ C{N^{-}} $
C) $ CO $
D) $ N{O^{+}} $
Show Answer
Answer:
Correct Answer: A
Solution:
Electronic configuration of $ O_2 $ is $ O_2=\sigma {{(1s)}^{2}}{{\sigma }^{*}}{{(1s)}^{2}}\sigma {{(2s)}^{2}}{{\sigma }^{*}}{{(2s)}^{2}}\sigma {{(2p_{x})}^{2}}\pi {{(2p_{y})}^{2}} $
$ \pi {{(2p_{z})}^{2}}{{\pi }^{*}}{{(2p_{y})}^{1}}{{\pi }^{*}}{{(2p_{z})}^{1}} $ The molecule has two unpaired electrons So, it is paramagnetic
