Learning objective
Write equations for cracking reactions.
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
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Flashcards
0
Questions
Topic
Alkanes
Subtopic
Fractional distillation and cracking
Study support
Understand this objective
Quick explanation
Write equations for cracking reactions
- This point belongs to Alkanes, especially Fractional distillation and cracking.
- You need to be able to write equations for cracking reactions.
- The key ideas to know are cracking.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Fractional distillation and cracking to exam-style questions, flashcards, and revision notes for Alkanes.
Quick student answer
Which of the following is a product of the cracking of hexane (C6H14)?
Direct answer
C2H4
Key terms
- Cracking: A process used to break down large hydrocarbon molecules into smaller, more useful molecules, typically alkanes and alkenes.
- Catalyst: A substance that increases the rate of a chemical reaction without being consumed in the process.
Common trap
Incorrect balancing of equations: Always check that the number of each type of atom is the same on both sides of the equation.
Related questions
Try this as a practice card
Question 1 of 3
Choose an answer, get feedback, then move sideways through the set.
Flashcard prompts
Flip through the key recall cards
Flashcard 1 of 3
Revision tools
Choose how to practise
Flashcards0 linked cards
Practice Questions0 linked questions
Revision notestopic notes
Open the full topic revision notes when you are ready to review this objective in context.
Open revision notesRelated learning objectives
- Explain how fractional distillation separates crude oil into fractions.
Fractional distillation and cracking
- Relate fraction properties to chain length and intermolecular forces.
Fractional distillation and cracking
- Explain why cracking is used to make more useful hydrocarbons.
Fractional distillation and cracking
- Write equations for complete combustion of alkanes.
Combustion and environmental effects
- Explain formation of pollutants in internal combustion engines.
Combustion and environmental effects