Lesson T6.1.2
T6.1.2 Exothermic and endothermic reactions Quiz: KS3 Chemistry, Unit 6
20 questions
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Lesson T6.1.2, Exothermic and endothermic reactions: 20 multiple choice questions for the KS3 Chemistry (National Curriculum), Unit 6: Energetics, written with Revision Ninja.
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The 20 questions
-
What is an exothermic reaction?
- Creates new matter
- Takes in energy
- Destroys energy
- Releases energy
-
What is an endothermic reaction?
- Produces light
- Creates heat
- Takes in energy
- Releases energy
-
Which of these is an example of an exothermic reaction?
- Thermal decomposition
- Photosynthesis
- Melting ice
- Combustion
-
Which process is an example of an endothermic reaction?
- Oxidation
- Neutralisation
- Combustion
- Thermal decomposition
-
What happens to surrounding temperature during an exothermic reaction?
- It stays constant
- It increases
- It decreases
- It drops to zero
-
A chemical hand warmer heats up when activated. What type of reaction is it?
- Exothermic
- Thermal decomposition
- Endothermic
- Neutral
-
An instant cold pack gets cold when activated. What type of reaction is taking place?
- Endothermic
- Combustion
- Neutralisation
- Exothermic
-
A reaction makes the test tube feel colder. What type is it?
- Combustion
- Exothermic
- Endothermic
- Displacement
-
What type of energy change occurs during a neutralisation reaction?
- Photochemical
- Endothermic
- Isothermal
- Exothermic
-
What type of energy change occurs during respiration?
- Endothermic
- Electrochemical
- Thermal decomposition
- Exothermic
-
What type of energy change occurs during photosynthesis?
- Neutralisation
- Exothermic
- Combustion
- Endothermic
-
How do product energy levels compare to reactants in an exothermic reaction?
- Higher energy
- Zero energy
- Equal energy
- Lower energy
-
Which reaction makes its surroundings feel warmer?
- Combustion
- Melting ice
- Thermal decomposition
- Photosynthesis
-
Heating copper carbonate to break it down is which type of reaction?
- Endothermic
- Combustion
- Exothermic
- Neutralisation
-
Which everyday activity involves an exothermic reaction?
- Melting ice
- Lighting a candle
- Boiling water
- Baking bread
-
Heating limestone strongly in a kiln to make quicklime is what type of change?
- Endothermic
- Exothermic
- Precipitation
- Combustion
-
What is the main difference between exothermic and endothermic reactions?
- Energy direction
- Reaction speed
- State of matter
- Colour change
-
Why does an endothermic reaction feel cold to the touch?
- Creates friction
- Releases heat
- Destroys mass
- Absorbs heat
-
A reaction mixture gets hotter. What type of reaction has occurred?
- Photosynthesis
- Exothermic
- Thermal decomposition
- Endothermic
-
A reaction raises water temperature from 20 °C to 30 °C. What type is it?
- Endothermic
- Exothermic
- Neutralisation
- Displacement
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