Question

Why d-block element form complexes?

• A. due to larger size and higher nuclear charge
• B. due to small size and low nuclear charge
  
• C. due to small size and higher nuclear charge
  
• D. none of the above

Answer 1

Answer: (C)

due to small size and higher nuclear charge

The d-block elements being smaller in size and have high electropositive density and they consists of (n-1)d free orbitals to accepts the free electrons from the ligand and it forms complexes easily.