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Course: IAL Edexcel Modular (Chemistry)
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IAL Edexcel Modular (Chemistry)

Unit 1. Structure, Bonding and Introduction to Organic Chemistry

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Unit 2. Energetics, Group Chemistry, Halogenoalkanes and Alcohols

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Unit 3. Practical Skills in Chemistry I

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Unit 4. Rates, Equilibria and Further Organic Chemistry

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Unit 5. Transition Metals and Organic Nitrogen Chemistry

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Unit 6. Practical Skills in Chemistry II

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Quiz

5.3 Transition Metal Reactions – Check yourself

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Transition Metal Reactions IAL Modular Chemistry check yourself quiz: free practice for IAL Edexcel Modular (chemistry). Work through this Transition Metal Reactions IAL Modular Chemistry check yourself quiz and get instant feedback on every answer. If you get stuck, review the 5.3 Transition Metal Reactions — Notes — IAL Chemistry Notes lesson. More practice: IAL Edexcel Modular (chemistry) — all units. Syllabus: Pearson Edexcel International A Levels.

  • Questions count: 10
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
What colour is VO2+(aq)?
Yellow
Green
Blue
Violet
2.
The chromate/dichromate interconversion is:
Redox
An acid-base equilibrium
Disproportionation
Ligand exchange with Cl-
3.
Why is [Fe(H2O)6]3+ more acidic than [Fe(H2O)6]2+?
Fe3+ is larger
Fe3+ has greater charge density, polarising O-H bonds more
Fe2+ has more ligands
Fe3+ is d6
4.
Which is an example of autocatalysis?
Fe in the Haber process
V2O5 in the Contact process
Fe2+ with S2O82- and I-
Mn2+ in MnO4-/C2O42-
5.
Which hydroxide dissolves in excess NaOH?
Cr(OH)3
Fe(OH)2
Cu(OH)2
Fe(OH)3
6.
Colour change when acidified dichromate is reduced:
Green to orange
Orange to green
Yellow to orange
Purple to colourless
7.
Which statement best describes Catalyst poisoning?
The ability of transition metals to form ions in several oxidation states because 3d and 4s energies are close.
Blocking of active sites by impurities, reducing catalyst efficiency, e.g. lead on catalytic converters.
A catalyst in the same phase as the reactants, working through an intermediate species.
Catalysis of a reaction by one of its own products, so the rate increases as product forms.
8.
Which statement best describes Autocatalysis?
The e.m.f. of a half-cell relative to the standard hydrogen electrode under standard conditions.
Loss of H+ from coordinated water in aqua ions, making the solution acidic.
A catalyst in a different phase from the reactants, reacting at active sites on its surface.
Catalysis of a reaction by one of its own products, so the rate increases as product forms.
9.
Which statement best describes Homogeneous catalyst?
A catalyst in the same phase as the reactants, working through an intermediate species.
Loss of H+ from coordinated water in aqua ions, making the solution acidic.
The weak bonding of reactant molecules to the surface of a heterogeneous catalyst.
A catalyst in a different phase from the reactants, reacting at active sites on its surface.
10.
Which statement best describes Variable oxidation state?
The e.m.f. of a half-cell relative to the standard hydrogen electrode under standard conditions.
The ability of transition metals to form ions in several oxidation states because 3d and 4s energies are close.
The weak bonding of reactant molecules to the surface of a heterogeneous catalyst.
Blocking of active sites by impurities, reducing catalyst efficiency, e.g. lead on catalytic converters.
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Part of Unit 5. Transition Metals and Organic Nitrogen Chemistry — see every lesson and quiz in this unit.
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