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 (A)</p> Signup and view all the answers

What is a characteristic of naphthalene?

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

Where is toluene primarily derived from?

<p>Petroleum (D)</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 (D)</p> Signup and view all the answers

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

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

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

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

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

<p>Solvent (D)</p> Signup and view all the answers

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