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Soil Colloids: Properties and Examples
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Soil Colloids: Properties and Examples

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Questions and Answers

What is the size range of particles possessing colloidal properties in soil colloids?

  • 0.002 - 0.01 mm
  • 0.001 - 0.0001 mm
  • 0.002 - 0.001 mm (correct)
  • 0.01 - 0.005 mm

    • Which property makes soil colloids expose a large external surface per unit mass?

  • Density
  • Size (correct)
  • Surface tension
  • Volume

    • What is the external surface area of 1g of colloidal clay compared to 1g of coarse sand?

  • The same
  • At least 100 times larger
  • At least 1000 times larger (correct)
  • Less than coarse sand

    • What instrument is required to see soil colloids due to their extremely small size?

    <p>Electron microscope</p> Signup and view all the answers

    Which type of clays have extensive internal surfaces in addition to external surfaces?

    <p>Silicate clays</p> Signup and view all the answers

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