Neutralization Quiz for 7th Class Students
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Questions and Answers

What happens when soap solution is dropped on blue litmus paper?

  • It turns red
  • It turns green
  • It turns purple
  • It remains blue (correct)

    • What does the red litmus turning blue when in contact with ammonia indicate?

  • Ammonia is neutral
  • Ammonia is basic (correct)
  • Ammonia is acidic
  • Ammonia is a gas

    • How does turmeric behave when washed with soap on white clothes?

  • It turns red (correct)
  • It turns green
  • It has no effect
  • It turns black

    • Why does dropping nitric acid on eggshell release carbon dioxide gas?

    <p>The acid causes a chemical reaction leading to gas release</p> Signup and view all the answers

    Is urea acidic, basic, or neutral in nature?

    <p>Acidic</p> Signup and view all the answers

    How can the sting of a wasp, which is basic, be treated?

    <p>Treating with an acid to neutralize the sting</p> Signup and view all the answers

    Why are acids not stored in a metal container?

    <p>Because acids react with metals and can corrode them</p> Signup and view all the answers

    How can you identify a basic solution using litmus paper?

    <p>It changes red litmus paper to blue</p> Signup and view all the answers

    When drops of lemon juice are put on blue litmus paper, what color change occurs?

    <p>Blue litmus turns red</p> Signup and view all the answers

    What property of soap solution makes it useful for cleaning acids?

    <p>High alkalinity as a base that can neutralize acids</p> Signup and view all the answers

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