EduNinjaCAIE IGCSE Chemistry Extended 9.3 Alloys and their properties question practice helps you revise this syllabus point with the course map in view. Use this page to focus on one topic, check the style of questions available, and connect each attempt back to the knowledge area it is testing.
EduNinja keeps Chemistry practice aligned to CAIE at Extended level, so you can move from topic review into exam-style question bank work without losing the syllabus structure. Start with a small set, mark the weak steps, then return to nearby topic links when a definition, graph, calculation, or explanation needs repair.
The diagram shows a blast furnace.
The graph shows how the malleability of iron changes as the percentage of carbon in the iron changes.
Describe how the malleability of iron changes as the percentage of carbon changes.
Some elements are shown in the order they appear in the reactivity series. The most reactive element is at the top.
> sodium calcium magnesium aluminium zinc iron hydrogen copper
Answer the questions using the list of elements. Each element may be used once, more than once or not at all.
Identify:
the main component of steel
a metal found in brass
Substances P and Q both conduct electricity.
P is a mixture of two different types of atom.
Q is made of only one type of atom.
Which row describes P and Q ?
P
Q
alloy
element
alloy
compound
compound
alloy
compound
element
Which description of brass is correct?
alloy
compound
element
non-metal
Which description of brass is correct?
alloy
compound
element
non-metal
Which description of brass is correct?
alloy
compound
element
non-metal
A list of five metals is shown.
A list of five metals is shown.
\title{
copper \\ iron \\ magnesium \\ potassium \\ silver
}
All metals form positive ions.
State which of the five metals in the list is a major component of stainless steel.
Zinc is extracted from an ore containing zinc sulfide.
Brass is an alloy of zinc.
Explain, in terms of particles, why brass is harder than pure zinc.
Zinc and copper are elements next to each other in the Periodic Table.
Name the alloy formed when zinc is mixed with copper.
Iron is extracted from its ore using coke in a blast furnace.
Iron containing a small amount of carbon is known as steel.
Explain why steel is less malleable than iron.