IBChemistry: HLDPExam Questions13. The Periodic Table- Transition Metals (HL only)13.1 Transition Metals

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First teaching 2014

Last exams 2024

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Transition Metals (DP IB Chemistry: HL)

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13.1 Transition Metals

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13.1 Transition Metals

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11 mark

What is the charge on the complex ion in [Fe(H2O)6]Br2 ?

  • 0

  • +1

  • +2

  • +3

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21 mark

Which of the following are properties of transition metals?

  1. They have variable oxidation states
  2. They can behave as catalysts
  3. They can have magnetic properties

  • I and II only

  • I and III only

  • II and III only

  • I, II and III

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31 mark

Which of the following are factors which affect the colour of a transition metal ion complex?

  1. The identity of the metal ion
  2. The oxidation state of the metal ion
  3. The number of neutrons in the metal ion

  • I and II only

  • I and III only

  • II and III only

  • I, II and III

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41 mark

Which species can not act as a ligand?

  • H2O

  • NH4+

  • Cl-

  • OH-

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51 mark

What is the abbreviated electron configuration of the nickel(II) ion, Ni2+ ?

  • [Ar] 3d8

  • [Ar] 4s2 3d6

  • [Ar] 4s2 3d8

  • [Ar] 4s1 3d7

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11 mark

In which complexes does iron have an oxidation state of +3? 

  1.   [Fe(H2O)6]3+
  2.   [Fe(H2O)5(CN)]2+
  3.   [Fe(CN)6]3−

  • I and II only

  • I and III only

  • II and III only

  • I, II and III

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21 mark

Which complex is likely to be colourless?

  • [Zn(H2O)6]Cl2

  • [NH4]2[Fe(H2O)6][SO4]2

  • K3[Co(CN)6]

  • [Ni(NH3)6][BF4]2

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31 mark

Part of the spectrochemical series is shown. 

I−< Cl − < H2O < NH3 

Which statement can be correctly deduced from the series?

  • H2O increases the p–d separation more than Cl - 

  • H2O increases the d–d separation more than Cl -

  • A complex with NH3 is more likely to be blue than that with Cl - 

  • Complexes with water are always blue 

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41 mark

Ammonia is a stronger ligand than water. Which statement is correct when concentrated aqueous ammonia solution is added to dilute aqueous copper(II) sulfate solution?

  • The d-orbitals in the copper ion split.

  • There is a smaller splitting of the d-orbitals.

  • Ammonia replaces water as a ligand.

  • The colour of the solution fades.

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51 mark

Cobalt forms the complex [Co(NH3)5Cl]2+. Which statements are correct for this complex? 

  1.   The cobalt ion acts as a Lewis acid.
  2.   The cobalt ion has an oxidation state of +2.
  3.   There are 90° bond angles between the cobalt ion and the ligands.

  • I and II only 

  • I and III only

  • II and III only

  • I, II and III

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1
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Which of the following is the most stable common oxidation state of manganese?

  • Mn+

  • Mn2+

  • Mn3+

  • Mn4+

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2
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Which metal sulfate solution is coloured?

  • ZnSO4 (aq)

  • NiSO4 (aq)

  • MgSO4 (aq)

  • Sc2(SO4)3 (aq)

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3
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Which complex has the greatest d orbital splitting?

  Complex Oxidation state of metal Colour of complex
A. [Fe(H2O)6]3+ +3 orange
B. [CoCl4]2- +4 blue
C. [Cr(OH)6]3- +3 green
D. [Cr(NH3)6]3+ +3 violet

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    41 mark

    Which of the following would be paramagnetic?

    • K+

    • Cd2+

    • Cr3+

    • Y3+

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    5
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    Copper forms the complex [CuCl4]2-. Which statements are correct for this complex?

    1.   The complex has a tetrahedral shape
    2.   The copper ion has a charge of +2
    3.   The copper ion acts as a Lewis base

    • I and II only

    • I and III only

    • II and III only

    • I, II and III

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