Inorganic Chemistry - wide variety of coordination complexes? - A) So...

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BWT1 CHEM 3300

Inorganic Chemistry

FA REVIEW

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• Which of the following metals is known for its ability to form a

wide variety of coordination complexes?

• Sodium
• Iron
• Calcium
• Potassium

- Correct Answer: B) Iron

- Rationale : Iron has multiple oxidation states and can form

complex ions with various ligands, making it versatile in coordination chemistry.

• The hybridization of the central atom in the square planar

complex [Ni(CN)4]2- is:

• sp
• sp2
• dsp2
• d2sp3

- Correct Answer: C) dsp2

- Rationale : Nickel in this complex has a coordination number

of 4 and undergoes dsp2 hybridization.

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• Which of the following is NOT a characteristic of transition

metals?

• Form colored compounds
• Show variable oxidation states
• Form ionic bonds primarily
• Exhibit paramagnetism

- Correct Answer: C) Form ionic bonds primarily

- Rationale : Transition metals often form covalent bonds rather

than solely ionic bonds.

### Fill-in-the-Blank Questions

• The process of incorporating a ligand into a metal complex is

referred to as ________.

- Correct Answer: complexation

- Rationale : This term describes the interaction between a

metal and ligands to form coordination compounds.

• In the octahedral complex [Co(NH3)6]Cl3, the coordination

number of Co is ________.

- Correct Answer: 6

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- Rationale : The six ammonia ligands coordinate with the

cobalt center, leading to a coordination number of 6.

• The ligands that can donate only one pair of electrons to the

metal are called ________ ligands.

- Correct Answer: monodentate

- Rationale : Monodentate ligands bind to the central metal

atom at a single attachment point.

### True/False Questions

7. True or False: All coordination complexes are colored due to

d-d transitions.

- Correct Answer: False

- Rationale : Not all coordination complexes exhibit color;

factors like oxidation state, ligand field strength, and d-electron count determine color.

8. True or False: The ligands in a coordination complex can

influence the stability and reactivity of the complex.

- Correct Answer: True