Complex ions, ligands and shapes

Complex ions, ligands and shapes Quiz

Spec 17.12–17 · Edexcel International A Level Chemistry: Quiz

Studying this course? Keep your progress in one place.

Pick an answer for each. Quizzes never use energy.

5 questions, one answer each

Each answer is checked as you go, with why.

See all 5 questions

  1. 1. Which of these is a bidentate ligand?

    • A. H₂O
    • B. NH₃
    • C. NH₂CH₂CH₂NH₂
    • D. Cl⁻

  2. 2. What is the coordination number of nickel in [Ni(NH₂CH₂CH₂NH₂)₃]²⁺?

    • A. 6
    • B. 3
    • C. 2
    • D. 4

  3. 3. Why does [CuCl₄]²⁻ have only four ligands?

    • A. Chloride ions are positively charged
    • B. Chloride ions have no lone pairs
    • C. Copper cannot form six bonds
    • D. Chloride ions are larger than water molecules

  4. 4. What type of bond forms between a ligand and a metal ion?

    • A. Ionic
    • B. Dative covalent
    • C. Metallic
    • D. Hydrogen

  5. 5. What happens when carbon monoxide meets oxyhaemoglobin?

    • A. The haemoglobin is oxidised to iron(III)
    • B. CO is released
    • C. CO replaces O₂ by ligand exchange
    • D. The coordination number of iron falls to 4

Quiz