pBlock ElementsII 1 Question 13
13. Which of the following properties is not shown by $NO$?
(2014 Main)
(a) It is paramagnetic in liquid state
(b) It is a neutral oxide
(c) It combines with oxygen to form nitrogen dioxide
(d) Its bond order is $2.5$
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Answer:
Correct Answer: 13. (a)
Solution:
$NO$ is paramagnetic in gaseous state because in gaseous state, it has one unpaired electron.
Total number of electrons present $=7+8=15 e^{-}$
Hence, there must be the presence of unpaired electron in gaseous state while in liquid state, it dimerises due to unpaired electron.
BETA
