Form 3 Science Quiz Chapter 5

Which of the following statements describes the endothermic reaction?

• The surrounding temperature increases.

• Heat energy is released.

• All reactions are reversible.

• A reaction that absorbs heat energy from the surrounding.

Which of the following statements is correct about the dry ice fire extinguisher?

• Dry ice absorbing heat from the surrounding is an endothermic reaction.

• Dry ice melting into water is an endothermic reaction.

• Dry ice absorbing oxygen from the surrounding is an endothermic reaction.

• Dry ice covers the surface of fuel to cut off the oxygen supply.

The chemical reaction that absorbs heat from the surrounding is known as an endothermic reaction.

• True

• False

The chemical reaction that absorbs heat from the surrounding is known as an exothermic reaction.

• True

• False

The chemical reaction that releases heat from the surrounding is known as an exothermic reaction.

• True

• False

The chemical reaction that releases heat from the surrounding is known as an endothermic reaction.

• True

• False

Which of the following are examples of endothermic reactions?

• Photosynthesis

• Respiration

• Cake baking

• Combustion

Which of the following are examples of exothermic reactions?

• Photosynthesis

• Respiration

• Cake baking

• Combustion

The surrounding temperature increases because of

• endothermic reaction

• exothermic reaction

The surrounding temperature decreases because of

• endothermic reaction

• exothermic reaction