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Question
Which of the following species is not expected to be a ligand?
Options
\[\ce{NO}\]
\[\ce{NH^{+}4}\]
\[\ce{NH2 CH2 CH2 NH2}\]
\[\ce{CO}\]
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Solution
\[\ce{NH^{+}4}\]
Explanation:
Ligand must have atleast a lone pair of electrons to form M-L (Metal-ligand bond). In the above case \[\ce{NH^{+}4}\] does not possess any lone pair of electrons, hence it is not expected to be a ligand.
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