Leadex test1

Which of the following is not a transition metal

• Sc

• Mn

• Cr

• Co

Answer explanation

transition metals form stable ions with a partially filled D subshells. Sc is not a transition metal because Sc³⁺ doesnt have 3d orbitals

Which of the following is not a characteristics of transition metals

• They have variable oxidation states

• They have paramagnetic effect

• They have luminous properties when exposed to air

• They have catalytic properties

Answer explanation

Sc has a

The species that donate elctrons to the central metal atoms are called

• Central metal atom

• ligands

• Coordination compounds

• None

which of the following is a bidentate ligand

• NH₃

• EDTA

• Ethylene diamine

• H₂O

Transition metals have variable oxidation states due to

• Similarity in energy between 3d and 4s

• High catalytic properties

• Some are dimagnetic

• The y have partially filled d subshell