Eco-Friendly Dyeing Methods Quiz
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Questions and Answers

What is the chemical formula for toluene?

  • C2H6
  • CH3OH
  • C6H5CH3 (correct)
  • C4H10
  • Which compound is used in mothballs and in the manufacture of dyes and explosives?

  • Toluene
  • Xylene
  • Benzene
  • Naphthalene (correct)
  • What is a harmful effect of using artificial dye for hair?

  • Improves hair texture
  • Promotes hair growth
  • Causes hair fall (correct)
  • Strengthens hair roots
  • Which raw material undergoes processes like nitration, sulphonation, and reduction to become dye intermediates?

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

    What is a characteristic of naphthalene?

    <p>Used in insect repellents and mothballs</p> Signup and view all the answers

    Where is toluene primarily derived from?

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

    Which compound is found in coal tar and petroleum, and has reduced use as a solvent due to its carcinogenic properties?

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

    What is the primary reason for the reduced use of benzene as a solvent?

    <p>'Carcinogenic' properties</p> Signup and view all the answers

    What effect can the dyes present in lipsticks have on humans?

    <p>Cause skin irritation</p> Signup and view all the answers

    What is a common application of xylene in industries and medical technology?

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

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