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

Practice Questions

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

Questions & Step-by-Step Solutions

What is the coordination number of the complex ion [Co(NH3)6]Cl3?
  • Step 1: Identify the complex ion in the question, which is [Co(NH3)6]Cl3.
  • Step 2: Look at the part inside the brackets, which is Co(NH3)6.
  • Step 3: Note that 'Co' stands for cobalt, and 'NH3' is ammonia, which is a ligand.
  • Step 4: Count the number of ammonia ligands attached to the cobalt ion. There are 6 ammonia ligands.
  • Step 5: The coordination number is defined as the number of ligands attached to the central metal ion.
  • Step 6: Since there are 6 ammonia ligands, the coordination number of the complex ion is 6.
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