Question

when food is exposed to air, it can lose electrons. this loss of electrons creates reactive molecules that work to destroy the chemical bonds in the food, causing it to spoil. what are these reactive molecules called?

a. oxygen molecules

b. free radicals

c. hydrogen molecules

d. spoiling molecules

Explanation:

To solve this, we analyze each option:

• Option A: Oxygen molecules are stable (O₂) and not the reactive molecules formed from electron loss in food spoilage.
• Option B: Free radicals are molecules with unpaired electrons, formed when atoms/molecules lose electrons. They are highly reactive and can break chemical bonds in food, causing spoilage. This matches the description.
• Option C: Hydrogen molecules (H₂) are stable and not related to this type of food spoilage reaction.
• Option D: "Spoiling molecules" is not a scientific term for these reactive species.

Answer:

B. Free radicals