Werner's Theory
Easychemistry
According to Werner's theory, in [Co(NH₃)₆]Cl₃, the coordination number of Co is:
Select the correct option:
Solution
Incorrect! Answer:
6
According to Werner's Coordination Theory:
- Primary Valence: Ionizable valence (oxidation state). For Co, it is +3. Cl⁻ ions satisfy this.
- Secondary Valence: Non-ionizable valence (Coordination Number). It represents the number of ligand donor atoms bonded to the metal.
- In [Co(NH3)6]Cl3, the species inside the square brackets constitute the coordination sphere.
- Six nitrogen atoms from six NH3 molecules are directly coordinated to the Cobalt center.
- Therefore, the coordination number is 6.
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
About This Question
- Subject
- chemistry
- Chapter
- coordination compounds
- Topic
- werner's theory
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
6
According to Werner's Coordination Theory:
- Primary Valence: Ionizable valence (oxidation state). For Co, it is +3. Cl⁻ ions satisfy this.
- Secondary Valence: Non-ionizable valence (Coordination Number). It represents the number of ligand donor atoms bonded to the metal.
- In [Co(NH3)6]Cl3, the species inside the square brackets constitute the coordination sphere.
- Six nitrogen atoms from six NH3 molecules are directly coordinated to the Cobalt center.
- Therefore, the coordination number is 6.
This easy difficulty chemistry question is from the chapter coordination compounds, covering the topic of werner's theory. It appeared in the 2025 exam.
Looking for more practice? Explore all chemistry questions or browse coordination compounds questions on RankGuru.