Transition Metals

Which one of the following electronic configurations is that of a transition element?

• [Ar] 4s²3d¹⁰

• [Ar] 4s²3d⁹

• [Ar] 4s²3d⁰

• [Ar] 4s²3d¹⁰4p¹

Which of the species given below can behave as ligands?NH₂^- NH₃ NH₄⁺

• all three

• only NH₃

• NH₃ and NH₄⁺

• NH₂^- and NH₃

3d orbitals are degenerate. What does it means?

• All 3d orbitals are in same order

• All 3d orbitals have different electron arrangement

• All 3d orbitals have the same energy

• All 3d orbitals have the same shape

Zn²⁺ solution in the presence of water is colorless. Why?

• Presence of ligands cause the splitting of 3d orbital.
• There is no splitting of 3d orbitals
• There is no electrons to be excited
• 3d orbitals are fully filled and no electrons can be excited

Name this compound [Cr(H₂O)₆]Cl₂

• hexaaquachromium III chloride

• hexaaquachromium III

• hexaaquachromium 3 chloride

• hexaaquachromium chloride

Choose the correct formula for tetraaquadichloridochromium III chloride

• [Cr(H₂O)₄(Cl)₂]Cl₃

• [Cr(H₂O)₄(Cl)₂]Cl₂

• [Cr(H₂O)₄(Cl)₂]Cl

• [Cr(H₂O)₄(Cl)₃]

Predict the name and shape of the ion [CuCl₄]^2-

• tertachloridocopper (II) Octahedral

• tertachloridocuprate (II) Octahedral

• tertachloridocopper (II)Tetrahedral

• tertachloridocuprate (II)Tetrahedral

What is the coordination number of the ion tertachloridocobaltate (II)

• 1

• 2

• 3

• 4

What is the name and shape of this complex? [Ag(Cl)₂]^-

• dichloridosilver (I) and linear

• dichloridoargentate (I) and linear

• dichloridoargentate (I) and angular

• dichloridosilver (I) and angular

The preferred oxidation state of a transition metal depends upon

• Emptying the 4s orbital before the 3d orbitals

• The stability of the ions electron arrangement

• The stability of the atoms electron arrangement

• The total number of 4s and 3d electrons