Worksheet: Transition Metals

In this worksheet, we will practice describing the compounds and reactivities of transition metals and trends in their physical and chemical properties.

Q1:

Which of the following is not a transition metal?

  • ACobalt
  • BRhodium
  • CZirconium
  • DPotassium
  • EGold

Q2:

Which of the following is not a common property of the transition metals?

  • AThey form multiple stable ions.
  • BThey are good catalysts.
  • CThey are easily vaporized.
  • DThey form colorful ions.
  • EThey are good thermal conductors.

Q3:

Which of the following is not a common property of the transition metals?

  • AStrong
  • BColorful
  • CShiny
  • DDense
  • EElectrically conductive

Q4:

Transition metals and alkali metals have a few features in common but are different in many ways. Which of the following statements is false?

  • ATransition metals produce less colorful compounds than alkali metals.
  • BAlkali metals have lower melting and boiling points than transition metals.
  • CAlkali metals are not widely used as catalysts, while transition metals are.
  • DTransition metals are harder and stronger than alkali metals.
  • ETransition metals have a larger number of stable oxidation states than alkali metals.

Q5:

In which of the following compounds does the transition metal display the highest oxidation state?

  • APotassium manganate(VII)
  • BCopper(I) fluoride
  • CManganese(IV) oxide
  • DIron(III) chloride
  • ESodium chromate(VI)

Q6:

Copper is a transition metal, while sodium is an alkali metal. Which of the following tests would yield similar results for these metals?

  • APlacing them in cold water
  • BHeating them to 100C
  • CStoring them in dry air
  • DUsing a hammer to change their shape
  • ETesting if they are electrically conductive

Q7:

Shown in the graph are the melting points of the first 56 elements of the Periodic Table and the groups in which they occur.

The transition metals are positioned between Groups 3 and 12. Which of the following is the most accurate comparison of the melting points shown in the graph?

  • AThe transition metals have higher melting points than almost all of the main group elements.
  • BThe transition metals have lower melting points than almost all of the main group elements.
  • CThe transition metals have lower melting points than all of the main group elements.
  • DThe transition metals and main group elements display a similar range of melting points.
  • EThe transition metals have higher melting points than all of the main group elements.

Q8:

A natural spring containing manganese is found to be highly acidic. Using the diagram shown, what form of iron would you predict to be most abundant?

  • A F e ( O H ) ( ) 2 s
  • B F e ( O H ) ( ) 3 s
  • C F e ( ) 3 + a q
  • D F e ( ) 2 + a q
  • E F e ( ) s

Q9:

Why are the hexa-aqua complexes of Sc3+ and Zn2+ colorless, while the hexa-aqua complexes of Fe2+, Cr3+, Co2+, Ni2+, and Cu2+ are intensely colored?

  • A Z n 2 + and Sc3+ are paramagnetic; the others are diamagnetic.
  • B Z n 2 + and Sc3+ are diamagnetic; the others are paramagnetic.
  • C Z n 2 + and Sc3+ always form high-spin octahedral complexes.
  • D Z n 2 + has a completely filled d orbital, and Sc3+ has a completely empty d orbital.
  • E Z n 2 + and Sc3+ always form low-spin octahedral complexes.

Q10:

Why are the hexaaqua complexes of Sc3+ and Zn2+ colorless, while the hexaaqua complexes of Fe2+, Cr3+, Co2+, Ni2+, and Cu2+ are intensely colored?

  • A Z n 2 + and Sc3+ are diamagnetic; the others are paramagnetic.
  • B Z n 2 + and Sc3+ are paramagnetic; the others are diamagnetic.
  • C Z n 2 + has a completely filled d orbital, and Sc3+ has a completely empty d orbital.
  • D Z n 2 + and Sc3+ always form low-spin octahedral complexes.
  • E Z n 2 + and Sc3+ always form high-spin octahedral complexes.

Q11:

The UV spectrum of metal complex A has a strong absorption at 412 nm. The UV spectrum of metal complex B has a strong absorption at 654 nm. If equal quantities of the two solutions of metal complexes were mixed, what would the resulting UV spectrum look like?

  • AThe spectrum would show two weak absorption bands, one at 472 nm and the other at 594 nm.
  • BThe spectrum would show two strong absorption bands, one at 472 nm and the other at 594 nm.
  • CThe spectrum would show one very broad absorption band at 533 nm.
  • DThe spectrum would show two strong absorption bands, one at 412 nm and the other at 654 nm.
  • EThe spectrum would show two weak absorption bands, one at 412 nm and the other at 654 nm.

Q12:

Which of the following do transition metals not exhibit?

  • AThey conduct heat and electricity.
  • BThey are malleable and ductile.
  • CThey have high melting points.
  • DThey are lustrous.
  • EThey undergo irreversible oxidation.

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