Aromatic Compounds Chemistry
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Questions and Answers

What is the correct structure of a phenyl group?

  • CH2=CH-
  • C6H5- (correct)
  • COOH
  • NO2
  • Which of the following is a meta directing group on the benzene ring?

  • Hydroxyl (OH)
  • Aldehydic (-CHO) (correct)
  • Alkyl (R) (CH3)
  • Vinyl (CH2=CH-)
  • Who is credited with discovering the hexagonal cyclic shape of the benzene molecule?

  • Kekule (correct)
  • Dalton
  • Avogadro
  • Mendeleev
  • How is benzene obtained from phenol?

    <p>By reducing phenol with hot zinc powder</p> Signup and view all the answers

    What is the most important organic compound obtained from the fractional distillation of coal tar?

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

    What is the method called when ordinary hexane is passed at high temperature over a hot catalyst to obtain benzene from aliphatic petroleum derivatives?

    <p>Catalytic reforming</p> Signup and view all the answers

    Why is it difficult for benzene to undergo reactions by addition under normal conditions?

    <p>Due to the delocalization of electrons in the benzene ring</p> Signup and view all the answers

    What is the compound formed when benzene reacts with chlorine gas or bromine fumes in sunlight?

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

    Why are polynitro organic substances considered very explosive?

    <p>Contain weaker N-O bonds compared to C-O and N-N bonds</p> Signup and view all the answers

    How does adding detergent to water enhance its ability to clean textile?

    <p>Decreases water's surface tension</p> Signup and view all the answers

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