Endothermic and Exothermic Reactions Quiz

A reaction accompanied by the release of heat.

• endothermic

• exothermic

• catalyst

• activation energy

What kind of graph is this?

• endothermic

• exothermic

What is an endothermic reaction?

• A reaction that releases energy in the form of heat

• A reaction that absorbs energy from its surroundings

• A reaction that does not involve any energy change

• A reaction that only occurs in living organisms

What is an exothermic reaction?

• A reaction that absorbs energy from its surroundings

• A reaction that releases energy in the form of heat

• A reaction that requires sunlight to occur

• A reaction that only occurs in plants

Which of the following is an example of an endothermic reaction?

• Combustion of wood

• Melting of ice

• Rusting of iron

• Freezing of water

Which of the following is an example of an exothermic reaction?

• Photosynthesis

• Evaporation of water

• Combustion of petrol

• Melting of ice

In an endothermic reaction, what happens to the temperature of the surroundings?

• It increases

• It decreases

• It remains the same

• It fluctuates

In an exothermic reaction, what happens to the temperature of the surroundings?

• It decreases

• It increases

• It remains the same

• It fluctuates

Which of the following reactions is endothermic?

• Freezing of water

• Boiling of water

• Burning of coal

• Condensation of steam

Which of the following reactions is exothermic?

• Photosynthesis

• Dissolving ammonium nitrate in water

• Neutralisation of an acid and a base

• Melting of ice