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AQA GCSE · Question 06.3 · Organic chemistry
Complete the sentences. Choose answers from the box.
[ceramics, composites, four, many, monomers, polymers, two]
Poly(styrene) is produced from small molecules called __________.
When poly(styrene) is made, __________ styrene molecules join to form large molecules.
These large molecules are called __________.
Complete the sentences. Choose answers from the box.
[ceramics, composites, four, many, monomers, polymers, two]
Poly(styrene) is produced from small molecules called __________.
When poly(styrene) is made, __________ styrene molecules join to form large molecules.
These large molecules are called __________.
How to approach this question
1. Read the first sentence. What is the scientific name for the small molecules that make up a polymer? Find the word in the box.
2. Read the second sentence. The prefix "poly" means what? This tells you how many molecules join together. Find the word in the box.
3. Read the third sentence. What is the scientific name for the very large molecules made from joining monomers together? Find the word in the box.
Full Answer
Poly(styrene) is produced from small molecules called **monomers**.
When poly(styrene) is made, **many** styrene molecules join to form large molecules.
These large molecules are called **polymers**.
This question tests the key vocabulary for polymers.
- The small, repeating units that join together to form a polymer are called **monomers**.
- The prefix "poly-" means "many". Therefore, **many** monomer molecules join together during polymerisation.
- The resulting large molecules, made up of many repeating monomer units, are called **polymers**.
Common mistakes
✗ Mixing up the terms "monomer" and "polymer".
✗ Choosing a number like "two" or "four" instead of "many". While many is not a specific number, it correctly describes the vast number of units in a polymer chain.
Practice the full AQA GCSE Chemistry Foundation Tier Paper 2
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