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The ligand diethylene triamine is:
A.Monodentate
B.Bidentate
C.Tridentate
D.Tetradentate

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Last updated date: 23rd May 2024
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Answer
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Hint: Ligand is basically an ion or a compound having a pair of electrons or electrons ready to get paired with which is not part of the actual bonding in its primary compound by the help of coordinate bonding. In this type of bonding one compound gives a pair of electrons to the other substance but shares the electron not ionically.

Complete answer:
Ligand is basically an ion or a compound having a pair of electrons or electrons ready to get paired with which is not part of the actual bonding in its primary compound by the help of coordinate bonding. In this type of bonding one compound gives a pair of electrons to the other substance but shares the electron not ionically.
Ligands generally react with compounds of d block element. When the ligands attack, they attack at the whole orbital and also sometimes hybridises it. The ligand occupies the whole orbital and doesn't go in an orbital having a single unpaired electron.
Now ligand on the basis of the number of donors is divided into various names: -
Monodentate – It is a ligand having just one donor atom.
Bidentate – it is a ligand having two donor atoms
Tridentate – it is a ligand having three donor atoms
And so on….
Now diethylene triamine, what do we know about the compound?
Now such a compound has three nitrogen atoms, all having a lone pair which is not hindered and ready to attack and be paired with.
Therefore, diethylene triamine is a tridentate.

Note:
Diethylene triamine is also known as EDTA. EDTA is the name which the factory workers or its manufacturers know this compound. It is used as an ointment for skin irritations due to metal. It is also used to treat calcium deposits in the eye through eye drop.
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