Lesson T4.2.1
T4.2.1 Combustion and thermal decomposition Quiz: KS3 Chemistry, Unit 4
20 questions
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Lesson T4.2.1, Combustion and thermal decomposition: 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
-
Which term describes a reaction with oxygen that releases energy?
- Thermal decomposition
- Combustion
- Displacement
- Neutralisation
-
What are the main products of complete hydrocarbon combustion?
- Methane and steam
- Carbon monoxide and soot
- Hydrogen and oxygen
- Carbon dioxide and water
-
What term describes a single substance breaking down when heated?
- Thermal decomposition
- Oxidation
- Combustion
- Reduction
-
When calcium carbonate is heated strongly, what gas is produced?
- Oxygen
- Carbon dioxide
- Hydrogen
- Nitrogen
-
Which chemical is used to test for carbon dioxide gas?
- Copper sulfate
- Universal indicator
- Limewater
- Damp litmus paper
-
Which gas relights a glowing splint?
- Oxygen
- Carbon dioxide
- Hydrogen
- Nitrogen
-
What is the name of the solid left after heating copper carbonate?
- Copper carbonate
- Copper oxide
- Copper sulfate
- Copper hydroxide
-
Which process is an example of combustion?
- Boiling water
- Dissolving salt
- Burning natural gas
- Melting ice
-
What type of reaction occurs when magnesium burns in air to form a white powder?
- Neutralisation
- Distillation
- Thermal decomposition
- Combustion
-
Limestone (calcium carbonate) heated strongly gives calcium oxide and carbon dioxide. Which type of reaction is this?
- Thermal decomposition
- Oxidation of a metal
- Displacement
- Combustion
-
What is the role of oxygen during the combustion of a fuel?
- It is a product
- It is a solvent
- It is a catalyst
- It is a reactant
-
Which product of combustion of a carbon-containing fuel turns limewater cloudy?
- Carbon dioxide
- Oxygen
- Water vapour
- Hydrogen
-
What happens to the mass of a metal when it burns in air?
- It stays the same
- It increases
- It drops to zero
- It decreases
-
Which gas is produced when a metal carbonate such as copper carbonate is heated?
- Carbon dioxide
- Chlorine
- Nitrogen
- Hydrogen
-
What forms when green copper carbonate is heated and turns black?
- Copper sulfate
- Carbon dioxide
- Calcium carbonate
- Copper oxide
-
What industrially useful chemical is made by thermally decomposing limestone?
- Copper oxide
- Calcium oxide
- Calcium sulfate
- Sodium chloride
-
What gas is produced when hydrogen fuel undergoes combustion?
- Carbon dioxide
- Carbon monoxide
- Water vapour
- Sulfur dioxide
-
How is energy transferred during a combustion reaction?
- Absorbed from surroundings
- Converted to mass
- Destroyed entirely
- Released to surroundings
-
Which evidence shows that combustion is taking place?
- Heat and light
- Freezing and dimming
- Melting and boiling
- Cooling and freezing
-
What new compound causes copper carbonate to turn black when heated?
- Copper sulfate
- Copper carbonate
- Copper chloride
- Copper oxide
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