OCR A Level Chemistry A
OCR A Level Chemistry A Alcohols and Haloalkanes Exam Questions
Free OCR A Level Chemistry A exam questions on Alcohols and Haloalkanes, with mark schemes. Covers alcohol reactions, oxidation, dehydration, haloalkane substitution and ozone depletion.
Alcohols and Haloalkanes 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 Alcohols and Haloalkanes
This topic covers two key functional groups.
What you need to know
- Alcohols Primary, secondary and tertiary.
- Oxidation Acidified dichromate, distillation and reflux.
- Haloalkanes Nucleophilic substitution and hydrolysis rates.
- Environment CFCs and ozone depletion.
Common mistakes in Alcohols and Haloalkanes
- Saying tertiary alcohols oxidise.
- Forgetting C-I bonds hydrolyse fastest.
- Mixing reflux and distillation.
Try three Alcohols and Haloalkanes exam-style questions
1. State the colour change with dichromate. (1 mark)
Show the mark scheme answer
Orange to green.
2. Explain why iodoalkanes hydrolyse fastest. (1 mark)
Show the mark scheme answer
C-I has the lowest bond enthalpy.
3. Describe how CFCs deplete ozone. (2 marks)
Show the mark scheme answer
UV breaks C-Cl to form Cl radicals (1), which catalyse ozone breakdown (1).
Alcohols and Haloalkanes FAQs
What does this topic cover?
Alcohols, haloalkanes and ozone.
Which practical links here?
Preparing an organic liquid with reflux and distillation.
Why use reflux?
To heat without losing volatile substances.
Revise this topic with flashcards: OCR A Level Chemistry A H432 Flashcards, with mark scheme answers for Anki and Quizlet.
