FAQs on Importance & Applications of Coordination Compounds

Question 1

1. What are coordination compounds?

Accepted Answer

Ans. Coordination compounds are molecules that consist of a central metal ion or atom surrounded by a group of coordinating atoms or molecules called ligands. These ligands donate electron pairs to the metal ion, forming coordinate bonds.

Question 2

2. Why are coordination compounds important?

Accepted Answer

Ans. Coordination compounds have various important applications. They are widely used in medicine for the development of new drugs and as contrast agents in medical imaging. In industry, coordination compounds are used as catalysts for chemical reactions and in the production of dyes and pigments. They also play a crucial role in biological systems as metalloproteins and enzymes.

Question 3

3. How do coordination compounds form complex ions?

Accepted Answer

Ans. Coordination compounds form complex ions through a process called ligand substitution. In this process, the ligands attached to the central metal ion are replaced by other ligands. This substitution can occur due to changes in pH, temperature, or the presence of other coordinating species.

Question 4

4. Give an example of a coordination compound and its application.

Accepted Answer

Ans. One example of a coordination compound is cisplatin, which is used as a chemotherapy drug to treat various types of cancer. Cisplatin forms coordination complexes with DNA molecules, inhibiting DNA replication and causing cell death.

Question 5

5. How do coordination compounds exhibit different colors?

Accepted Answer

Ans. The color of coordination compounds is due to a phenomenon called ligand field splitting. When light interacts with a coordination compound, the energy of the incident light is absorbed by the metal ion's d-orbitals. The absorbed energy corresponds to a specific wavelength, resulting in the compound's characteristic color. Different ligands can lead to different ligand field splitting and, therefore, different colors in coordination compounds.

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