What is the coordination number of the central metal ion in [Co(NH3)6]Cl3?

Practice Questions

Q1
What is the coordination number of the central metal ion in [Co(NH3)6]Cl3?
  1. 2
  2. 4
  3. 6
  4. 8

Questions & Step-by-Step Solutions

What is the coordination number of the central metal ion in [Co(NH3)6]Cl3?
Correct Answer: 6
  • Step 1: Identify the central metal ion in the complex. In this case, it is Co (Cobalt).
  • Step 2: Look at the ligands attached to the central metal ion. Here, we have 6 NH3 (ammonia) ligands.
  • Step 3: Determine how many ligands are bonded to the central metal ion. Since there are 6 NH3 ligands, they each bond to the Co.
  • Step 4: The coordination number is defined as the total number of ligands bonded to the central metal ion.
  • Step 5: Since there are 6 NH3 ligands, the coordination number of Co is 6.
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