Handwriting Analysis Quiz
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Questions and Answers

What is urea-formaldehyde (UF) mainly used for?

  • Medium-density fibreboard (MDF) and jar caps
  • Adhesives, plywood, and slow-release fertilizer (correct)
  • Rubber improvement, tear strength, and electrical devices
  • Automobile tires, paper, and molding objects
  • When was UF first synthesized?

  • 1884 (correct)
  • 1876
  • 1892
  • 1901
  • What percentage of thermosetting resins produced worldwide are urea-formaldehyde resins?

  • 50%
  • 90%
  • 80% (correct)
  • 60%
  • In what industry are urea-formaldehyde compounds commonly used?

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

    What did the creators of UF not realize during its initial synthesis?

    <p>Urea and formaldehyde were polymerizing</p> Signup and view all the answers

    Study Notes

    Urea-Formaldehyde (UF)

    • Urea-formaldehyde (UF) is mainly used for producing adhesives, resins, and plastics.

    History of UF

    • UF was first synthesized in 1884.

    Global Production of UF Resins

    • Urea-formaldehyde resins account for approximately 80% of thermosetting resins produced worldwide.

    Industry Applications of UF

    • Urea-formaldehyde compounds are commonly used in the wood industry.

    Initial Synthesis of UF

    • The creators of UF did not realize the potential toxicity of the formaldehyde during its initial synthesis.

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    Description

    Test your knowledge of handwriting analysis with this quiz. Identify key features in handwriting and understand their significance in determining personality traits.

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