BSAC 204-Before-final-exam_Part 2

What is the coordination number in Na[Co(ox)₂(H₂O)₂]?

• 4

• 5

• 6

• 7

What is the oxidation state of the metal in (NH₄)₂[CoCl₄] ?

• 0

• +1

• +2

• -2

What is the ligand name and the charge of "gly" ?

• Glycinato, -1

• Glycine, 0

• Glycinato, 0

• Glycine, -1

Which of the following electron configurations of octahedral complexes is diamagnetic?

• d²

• d⁶, low spin

• d⁶, high spin

• d⁴, high spin

What is the symbol of the orbitals of tetrahedral complexes at the higher energy state?

• e_g

• t_2g

• e

• t₂

The magnitude of d-d orbital splitting energy (Δ_o) is dependent on __________.

• Type of metal and type of ligand

• Type of ligand only

• Charge of metal only

• Type of metal, charge of metal, and type of ligand

cis-[RhCl₂(NH₃)(H₂O)] is _____________ .

• a chiral tetrahedral complex

• an achiral tetrahedral complex

• a chiral square planar complex

• an achiral square planar complex

NH₃ and CO are considered as __________ .

• sigma donor and pi acceptor, respectively

• sigma donor and pi donor, respectively

• pi donor and pi acceptor, respectively

• pi acceptor and pi donor, respectively

Which type of ligands gives the smallest Δo when bonded to the same metal ion ?

• Pi donor

• Pi acceptor

• Sigma donor

• Sigma acceptor

Which element has the highest melting point (3,422 °C) in the periodic table?

• Gold (Au)

• Tungsten (W)

• Molybdenum (Mo)

• Gallium (Ga)