Chemistry- Coordination Compounds Online Practice Exams

Chemistry- Coordination Compounds

Free Mock Test

Questions 21
Maximum mark 21

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Uncover the World of Chemistry - Coordination Compounds

Coordination Compounds is an important topic that explores the fascinating world of complex compounds formed by coordination bonds. Understanding the structures, bonding, and properties of coordination compounds and their applications is crucial for 12th-grade students. MyTAT offers you the tools to explore the world of Chemistry and gain deeper insights into the concept of Coordination Compounds.

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Chemistry- Coordination Compounds Online Practice Exams FAQs

1. What are coordination compounds in chemistry?

Coordination compounds are complex molecules formed by the coordination of a central metal ion with ligands. Ligands are molecules or ions that donate electron pairs to the metal ion, forming coordinate covalent bonds. These compounds possess distinct properties and structures due to the coordination bonds. Coordination compounds are essential in fields such as catalysis, medicine, and industrial applications.

2. What are ligands in coordination compounds?

Ligands are molecules or ions that surround the central metal ion in a coordination compound. They donate electron pairs to the metal ion through coordinate covalent bonds. Ligands can be classified as monodentate (donating one electron pair), bidentate (donating two electron pairs), or polydentate (donating multiple electron pairs). Common ligands include ammonia (NH3), water (H2O), chloride ion (Cl-), and ethylenediamine (en). The coordination number of the metal ion depends on the number of ligands surrounding it.

3. How are coordination compounds named?

Coordination compounds are named following a systematic nomenclature system. The name typically includes:

The name of the ligands, listed alphabetically, along with their prefixes (e.g., chloro-, aqua-, nitro-).
The name of the central metal ion, often indicating its oxidation state using Roman numerals in parentheses.
If the compound is anionic or cationic, the charge is specified at the end of the name.
If the compound is a complex ion within a larger compound, the complex ion's name is enclosed in square brackets.

Proper naming ensures clear communication of the compound's composition and structure in chemical discussions and literature.

4. What are some applications of coordination compounds?

Coordination compounds have various applications, including:

Catalysts in industrial processes and chemical reactions.
Medicinal applications, such as in chemotherapy drugs.
Electroplating and metal refining processes.
Colorful pigments and dyes in the textile and paint industries.
Coordination complexes in analytical chemistry for metal ion detection.
Photosensitive compounds in photography and imaging.

The unique properties of coordination compounds make them valuable in diverse scientific and industrial fields.

5. How are coordination compounds formed?

Coordination compounds are formed through the coordination of ligands to a central metal ion. The process involves the following steps:

The metal ion undergoes ionization to form a positively charged central ion.
Ligands with lone pair electrons approach the central ion and form coordinate covalent bonds by donating electron pairs.
The ligands surround the metal ion in a specific geometry, such as octahedral, tetrahedral, or square planar, depending on the coordination number and ligand type.
The coordination compound remains stable due to the coordination bonds between the metal ion and ligands.

The formation of coordination compounds is a fascinating aspect of transition metal chemistry with significant implications in various scientific disciplines.