MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When a polydentate ligand uses all its donor atoms simultaneously to bond to a single metal ion, it is said to be a _______ ligand. |
| A. | unidentate |
| B. | didentate |
| C. | chelate |
| D. | ambidentate |
| Answer» D. ambidentate | |
| 2. |
The oxidation number of the central metal in a coordination entity is always a positive quantity. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
The oxidation number of the central metal ion in a coordination entity is the charge it would carry if all the _________ are removed along with the electron pairs that are shared with it. |
| A. | lewis acids |
| B. | anions |
| C. | ligands |
| D. | didentate ligands |
| Answer» D. didentate ligands | |
| 4. |
Which of the following compounds consists of a homoleptic complex? |
| A. | [Co(NH<sub>3</sub>)<sub>6</sub>]Cl<sub>3</sub> |
| B. | [Co(NH<sub>3</sub>)<sub>5</sub>Cl]Cl<sub>2</sub> |
| C. | [Co(NH<sub>3</sub>)<sub>4</sub>Cl<sub>2</sub>]Cl |
| D. | [Co(NH<sub>3</sub>)<sub>5</sub>(CO<sub>3</sub>)]Cl |
| Answer» B. [Co(NH<sub>3</sub>)<sub>5</sub>Cl]Cl<sub>2</sub> | |
| 5. |
Complexes in which a metal is attached to only one kind of donor group is called _______ |
| A. | Unidentate |
| B. | Chelate |
| C. | Homoleptic |
| D. | Heteroleptic |
| Answer» D. Heteroleptic | |
| 6. |
What is the shape of the coordination polyhedron of [PtCl4]2-? |
| A. | Linear |
| B. | Square planar |
| C. | Tetrahedral |
| D. | Octahedral |
| Answer» C. Tetrahedral | |
| 7. |
What is the correct way of representing nickel in [Ni(CO)4]? |
| A. | Ni(0) |
| B. | Ni(I) |
| C. | Ni(II) |
| D. | Ni(III) |
| Answer» B. Ni(I) | |
| 8. |
The coordination number is determined by the number of both, sigma and pi bonds formed by the ligand with the central atom/ion. |
| A. | True |
| B. | False |
| Answer» C. | |