Water Analysis Quiz
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Questions and Answers

What is the property of water that prevents lather formation of soap?

  • Acidity
  • Salinity
  • Hardness (correct)
  • Alkalinity
  • Which ions are responsible for causing hard water?

  • Potassium (K+) ions
  • Calcium (Ca2+) ions (correct)
  • Sodium (Na+) ions
  • Chloride (Cl-) ions
  • What type of hardness can be removed by simple boiling?

  • Temporary hardness (correct)
  • Permanent hardness
  • Very hard hardness
  • Moderate hardness
  • What forms when Calcium and Magnesium ions react with sodium salts of soap?

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

    What is the hardness range for water categorized as 'Very hard'?

    <p>180 &amp; over mg/L (ppm)</p> Signup and view all the answers

    What is the property of water that prevents lather formation of soap?

    <p>Presence of calcium and magnesium ions</p> Signup and view all the answers

    Which ions are responsible for causing permanent hardness in water?

    <p>Calcium and magnesium sulfates</p> Signup and view all the answers

    What is the soap consuming capacity of water known as?

    <p>Hardness of water</p> Signup and view all the answers

    Which type of hardness can be removed by simple boiling?

    <p>Temporary hardness</p> Signup and view all the answers

    What is the range of hardness for water categorized as 'Moderately hard (Medium)'?

    <p>60-120 mg/L (ppm)</p> Signup and view all the answers

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