Exothermic & Endothermic Reactions Quiz

What type of chemical reaction releases energy into the surroundings?

• Endothermic

• Exothermic

• Neutral

• Physical

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

• Melting of ice

• Burning of wood

• Photosynthesis

• Dissolving sugar in water

What happens to the surroundings during an endothermic reaction?

• They get hotter

• They get colder

• They remain unchanged

• They become more humid

What is the primary function of vermiculite in hand warmers?

• To absorb moisture

• To release heat rapidly

• To slow down heat release

• To increase the reaction rate

Which process involves plants absorbing light energy to produce glucose?

• Respiration

• Photosynthesis

• Fermentation

• Decomposition

What type of reaction occurs when citric acid and sodium bicarbonate react in sherbet sweets?

• Exothermic

• Endothermic

• Neutral

• Physical

What is the purpose of using a damper in a wood-burning stove?

• To increase airflow

• To control the direction of the flame

• To control the amount of air reaching the fire

• To reduce smoke

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

• Rusting

• Melting of ice

• Burning of coal

• Reaction in hand warmers

What is the effect of an ice pack on an injury?

• It increases swelling and pain

• It reduces swelling, bleeding, and pain

• It has no effect on swelling or pain

• It increases bleeding

What is the role of charcoal in hand warmers?

• To absorb moisture

• To release heat rapidly

• To spread heat uniformly throughout the package

• To slow down the reaction