Chemical Reactions in Everyday Life Quiz
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Questions and Answers

What happens when grapes get fermented?

  • They undergo a physical change to become softer.
  • They undergo a chemical change to produce alcohol. (correct)
  • They undergo a physical change to change color.
  • They undergo a chemical change to produce sugar.

    • What happens when milk is left at room temperature during summers?

  • It turns into yogurt due to a chemical change.
  • It spoils due to a chemical change. (correct)
  • It evaporates due to a physical change.
  • It freezes due to a physical change.

    • What is the nature of the initial substance when a chemical change occurs?

  • It has somewhat changed. (correct)
  • It becomes lighter.
  • It becomes denser.
  • It remains the same.

    • What is the identity of the initial substance when a chemical change occurs?

    <p>It becomes a completely different substance.</p> Signup and view all the answers

    What do we observe when a magnesium ribbon is burned in air and the ash is collected?

    <p>Formation of magnesium oxide, indicating a chemical change.</p> Signup and view all the answers

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