Lesson T4.2.2
T4.2.2 Oxidation and displacement reactions Quiz: KS3 Chemistry, Unit 4
20 questions
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Lesson T4.2.2, Oxidation and displacement reactions: 20 multiple choice questions for the KS3 Chemistry (National Curriculum), Unit 4: Chemical reactions, written with Revision Ninja.
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The 20 questions
-
What is oxidation in terms of oxygen?
- Gaining oxygen
- Losing oxygen
- Losing carbon
- Gaining hydrogen
-
What is reduction in terms of oxygen?
- Losing oxygen
- Gaining oxygen
- Losing hydrogen
- Gaining carbon
-
Which metal reacts with oxygen to form a metal oxide when burned?
- Gold
- Silver
- Magnesium
- Platinum
-
What is the name of the product when a metal reacts with oxygen?
- A metal oxide
- A metal hydroxide
- A metal carbonate
- A metal sulfide
-
Which process occurs when a more reactive element displaces a less reactive one?
- Displacement reaction
- Combustion reaction
- Neutralisation reaction
- Thermal decomposition
-
Which metal is more reactive than copper?
- Gold
- Iron
- Silver
- Platinum
-
What happens when iron is placed into copper sulfate solution?
- No reaction occurs
- Copper displaces iron
- Solution turns darker
- Iron displaces copper
-
Why does zinc displace copper from copper sulfate solution?
- Zinc is less reactive
- Copper is more reactive
- Zinc is more reactive
- They have equal reactivity
-
Why does magnesium displace iron from iron oxide when heated?
- Magnesium is less reactive
- Iron has higher density
- Iron is more reactive
- Magnesium is more reactive
-
Which process represents a metal being oxidised?
- Magnesium burning in air
- Copper melting
- Iron cooling down
- Zinc dissolving in acid
-
What does a more reactive metal do during displacement?
- Replaces less reactive metal
- Creates a new noble gas
- Destroys the compound
- Remains completely unreacted
-
Which of these processes is an example of oxidation?
- Melting of ice
- Boiling of water
- Rusting of iron
- Dissolving of salt
-
Which of these metals would NOT displace copper from copper sulfate?
- Zinc
- Gold
- Iron
- Magnesium
-
Which type of reaction describes a substance losing oxygen?
- Oxidation
- Combustion
- Neutralisation
- Reduction
-
Of magnesium, copper and gold, which is most reactive?
- Copper
- Gold
- Magnesium
- Silver
-
In the reaction CuO + C to Cu + CO, what happens to carbon?
- Unchanged throughout
- Reduced by losing oxygen
- Oxidised by gaining oxygen
- Precipitated as a solid
-
Which element is used to reduce iron oxide in a blast furnace?
- Magnesium
- Carbon
- Sodium
- Copper
-
What physical state does the displaced metal typically form in a displacement reaction?
- Solid deposit
- Liquid layer
- Colourless solution
- Gas bubbles
-
What colour deposit forms on zinc when placed in copper sulfate solution?
- Yellow
- White
- Brown
- Black
-
Which metal displaces copper from copper sulfate solution?
- Platinum
- Silver
- Zinc
- Gold
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