Chemical Reactions and Everyday Life Quiz
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Questions and Answers

What is the purpose of the activity described in the text?

  • To study the digestion process in the human body
  • To understand the process of fermentation in grapes
  • To observe the effect of temperature on milk
  • To determine the nature and identity of initial substances in chemical reactions (correct)

    • In which situation does a chemical change occur?

  • Exposing an iron tawa/pan/nail to a humid atmosphere
  • Leaving milk at room temperature during summers
  • Respiration
  • Cooking food (correct)

    • What happens when a magnesium ribbon is burnt as described in the text?

  • It forms ash (correct)
  • It remains unchanged
  • It evaporates into thin air
  • It becomes a liquid

    • What do we observe during the burning of a magnesium ribbon?

    <p>Formation of a new substance</p> Signup and view all the answers

    Why is it recommended to wear eye protection during the activity?

    <p>To shield eyes from bright light produced during burning</p> Signup and view all the answers

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