OCR A Level Chemistry A
OCR A Level Chemistry A Transition Elements Exam Questions
Free OCR A Level Chemistry A exam questions on Transition Elements, with mark schemes. Covers properties, complex ions, ligand substitution, precipitation and redox titrations.
Transition Elements exam questions
1 question pack of real past exam questions with its mark scheme. Answer every question without notes, then mark your answers line by line against the mark scheme.
StemUp mark scheme flashcards
OCR A Level Chemistry A H432 Flashcards (Anki & Quizlet)
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Use them on Anki or Quizlet, then test yourself with the questions on this page.
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About OCR A Level Chemistry A Transition Elements
This topic covers d-block chemistry.
What you need to know
- Properties Variable oxidation states, colour and catalysis.
- Complexes Ligands, coordination number and stereoisomerism.
- Ligand substitution Colour changes with copper and chromium.
- Redox Manganate(VII) and iodine-thiosulfate titrations.
Common mistakes in Transition Elements
- Including zinc as a transition element.
- Getting precipitate colours wrong.
- Using the wrong redox mole ratio.
Try three Transition Elements exam-style questions
1. State the colour of Cu(OH)₂. (1 mark)
Show the mark scheme answer
Pale blue precipitate.
2. Explain cis-platin's use. (1 mark)
Show the mark scheme answer
It binds DNA and prevents replication in cancer cells.
3. Give the coordination number in [CuCl₄]²⁻. (1 mark)
Show the mark scheme answer
4.
Transition Elements FAQs
What does this topic cover?
Transition metal properties, complexes and redox.
Which practical links here?
Redox titrations and testing transition metal ions.
Why are complexes coloured?
d-orbital splitting allows absorption of visible light.
Revise this topic with flashcards: OCR A Level Chemistry A H432 Flashcards, with mark scheme answers for Anki and Quizlet.
