Which of the following species is not expected to be a ligand `overset

1.	Which of the following species is not expected to be a ligand `overset(o+)(NO)` `NH_(4)^(o+)` (c ) `NH_(2)-NH_(3)^(o+)` `(CO)` .
Answer» Correct Answer - b `NH_(4)^(o+)` cannot act as a ligand as lone pair on n-atoms is already donated to `H^(o+)` ion `(H_(3)N:rarrH^(o+) -=NH_(4)^(o+)` .

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Which of the following species is not expected to be a ligand `overset(o+)(NO)` `NH_(4)^(o+)` (c ) `NH_(2)-NH_(3)^(o+)` `(CO)` .

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