CAIE IGCSE Chemistry 9.3.5 Alloys Can Be Harder Stronger Than Questions
Work through real CAIE IGCSE Chemistry questions to explain alloy hardness and strength using particle arrangements.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Exam points
- explain in particle terms why alloys are harder than pure metals
- relate different-sized atoms in an alloy to disrupted metal layers
- explain why steel is stronger and less malleable than iron
- apply alloy structure to brass and steel examples
CAIE IGCSE Chemistry 9.3.5 Alloys Can Be Harder Stronger Than Questions question 1
[Maximum number: 1]
Steel is an alloy of iron.
Which statement explains why steel is stronger than iron?
A
Steel contains carbon which is a very hard substance.
B
The carbon atoms in steel bond together very strongly.
C
The carbon atoms in steel make the iron atoms bond together very strongly.
D
The carbon atoms prevent layers of iron atoms from sliding over each other.
D
All question bank results loaded