(NH2)2 serves as :- (1) Monodentate ligand, Non-chelating ligand (2) Bridging ligand, negative ligand (3) Bidentate ligand, chelating ligand (4) Bidendate ligand, Bridging ligand

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Q. Consider the following ligands

N H_{2}^{-}

, acac (Acetylacetone),

O H^{-}

, Gly,

O_{2}^{-}

, Phen, DMG,

N O_{2}^{-}, C O_{3}^{2 -}, C l^{-}, C H_{3} C O O^{-}, e n, S O_{4}^{2 -}, N_{2}^{-}

. Then calculate value of "

P + Q - R - S "

. Here
P: Total number of ligands which act as bridging as well as monodentate only.
Q: Total number of flexidentate ligands.
R: Total number of bidentate ligands only.
S: Total number of unsymmetrical bidentate ligands.

Column

-

Column

-

( where AB

\to

Unsym. bidentate ligand having no chiral center, a, b, c, d & e

\to

monodentate ligands )

Q. Where among the following metal complexes the one which exhibits optical activity is: (

A A =

bidentate ligand;

X =

monodentate ligand)

Q. Which of the following ligand is called chelating ligand ?

Identify the correct statements for the behavoiur of ethane-1, 2-diamine as a ligand.

(a) It is a neutral ligand
(b) It is a didentate ligand
(c) It is a chelating ligand
(d) It is a unidentate ligand

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