1. CN- is an ambidentate ligand because
(1) it has multiple bonds
(2) carbon has a negative charge
(3) it form chelate
(4) both C & N can donate lone pair
2. H2N-CH2-CH2– NH₂ serves as:
(1) Monodentate ligand
(2) Chelating ligand
(3) Anionic ligand
(4) Cationic ligand
3. Select bidentate or didentate ligand from the following.
(1) CO
(2) SCN–
(3) CH3COO–
(4) C2O42–
4. Which of the following ligands will not show chelation?
(1) EDTA
(2) DMG
(3) Ethane-1, 2 diamine
(4) SCN–
5. Which of the following is a neutral ligand
(1) en
(2) ox
(3) dmg
(4) EDTA
6. The strongest-CO bond is present in
(1) [Cr(CO)6]+
(2) [Fe(CO)5]
(3) [V(CO)6]–
(4) all have equal strength
7. Match the following and choose correct option.
Ligand Property
(1) ethylenediamine (P) bidentate ligand
(2) hydrazene (Q) tridentate ligand
(3) dimethylgyloximato(dmg-) (R) Monodentate ligand
(4) dien (S) can form dimer
A B C D
(1) P Q R S
(2) P R Q S
(3) P R S Q
(4) P S Q R
8. Which ligand is non classical ligand: –
(1) Cl–
(2) CO
(3) OH–
(4) NH3
9. Which of the following species is not expected to be ligand: –
(1) NO
(2) NH4+
(3) NH2CH2CH2NH2
(4) CO
10. Which of the following is not an ambidentate ligand
(1) CN–
(2) SCN–
(3) NO₂–
(4) dien