Metals
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Properties of metals
SubtopicProperties of metals under Metals for Grade 12 IGCSE.
Preview questions (no answers)
- 1.
What is the typical result of reacting a metal with a dilute acid?
A.A salt and oxygen gas
B.A salt and hydrogen gas
C.A metal oxide and water
D.A metal hydroxide and carbon dioxide
- 2.
Which of these metals is the most reactive?
A.Iron
B.Calcium
C.Silver
D.Lead
- 3.
Which metal produces a lilac (purple) flame when its salt is tested?
A.Sodium
B.Potassium
C.Lithium
D.Calcium
Download the worksheet for Metals - Properties of metals to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
Which of the following metals will NOT displace lead from lead(II) nitrate solution?
A.Zinc
B.Magnesium
C.Iron
D.Copper
- 2.
When iron(III) oxide reacts with aluminum powder (the thermite reaction), what are the products?
A.Aluminum oxide and iron
B.Aluminum sulfide and iron
C.Aluminum carbonate and iron
D.Aluminum hydroxide and iron
- 3.
Which of these metals is most likely to react with cold water to produce a flame?
A.Sodium
B.Calcium
C.Magnesium
D.Zinc
Download the worksheet for Metals - Reactivity series to practice offline. It includes additional chapter-level practice questions.
Extraction of metals (Iron and Aluminum)
SubtopicExtraction of metals (Iron and Aluminum) under Metals for Grade 12 IGCSE.
Preview questions (no answers)
- 1.
Which of the following is a benefit of recycling aluminum?
A.It uses more energy than extraction from ore
B.It is much cheaper and saves energy
C.It produces more carbon dioxide than extraction
D.It requires the use of cryolite
- 2.
In the blast furnace, which substance is reduced to form iron metal?
A.Carbon dioxide
B.Limestone
C.Iron(III) oxide
D.Calcium silicate
- 3.
Why is the extraction of aluminum considered a reduction process?
A.Because aluminum gains oxygen
B.Because aluminum ions gain electrons
C.Because the volume of the ore is reduced
D.Because the temperature is reduced
Download the worksheet for Metals - Extraction of metals (Iron and Aluminum) to practice offline. It includes additional chapter-level practice questions.
Uses of metals and alloys
SubtopicUses of metals and alloys under Metals for Grade 12 IGCSE.
Preview questions (no answers)
- 1.
Which of the following describes the 'sacrificial protection' of iron by zinc?
A.Zinc covers the iron so no air reaches it
B.Zinc is more reactive and corrodes instead of the iron
C.Zinc turns the iron into steel
D.Iron reacts with the zinc to form a new metal
- 2.
What happens to the melting point of a metal when it is turned into an alloy?
A.It always stays the same
B.It often decreases compared to the pure metals
C.It always doubles
D.It becomes absolute zero
- 3.
Which metal is often used in the die-casting of small intricate parts like toy cars because it has a low melting point and flows easily?
A.Tungsten
B.Zinc
C.Platinum
D.Iron
Download the worksheet for Metals - Uses of metals and alloys to practice offline. It includes additional chapter-level practice questions.