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Questions and Answers
Which type of orbitals are implied to participate in bonding when the coordination number is 10 or 12?
Which type of orbitals are implied to participate in bonding when the coordination number is 10 or 12?
- d-orbitals
- f-orbitals (correct)
- s-orbitals
- p-orbitals
Why does the tendency to hydrolysis increase with increasing atomic number for the Ce3+ ion?
Why does the tendency to hydrolysis increase with increasing atomic number for the Ce3+ ion?
- Due to the decrease in charge density
- Due to the expansion in radii
- Due to the increase in ionic radius
- Due to the contraction in radii (correct)
What property of lanthanide ions +3 favors the formation of complexes?
What property of lanthanide ions +3 favors the formation of complexes?
- Low charge density
- Small ionic radius
- Preference for covalent bonding
- High charge density (correct)
What happens to the M3+ aqua ions according to the hydrolysis equation?
What happens to the M3+ aqua ions according to the hydrolysis equation?
What is the role of CAN (ceric ammonium nitrate) in organic chemistry?
What is the role of CAN (ceric ammonium nitrate) in organic chemistry?
Why do the lanthanides form few complexes, mostly with oxygen ligands?
Why do the lanthanides form few complexes, mostly with oxygen ligands?
What is the typical coordination number of lanthanides in aqua complexes?
What is the typical coordination number of lanthanides in aqua complexes?
Why do lanthanides have little or no tendency to form complexes with π –bonding ligands?
Why do lanthanides have little or no tendency to form complexes with π –bonding ligands?
What limits the maximum coordination number of lanthanides to 9?
What limits the maximum coordination number of lanthanides to 9?
Why is it difficult to explain the bonding in complexes with high coordination numbers?
Why is it difficult to explain the bonding in complexes with high coordination numbers?
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