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
Hence, there must be the presence of unpaired electron in gaseous state while in liquid state, it dimerises due to unpaired electron.
