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Aromaticity (Grades 11-12)

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Aromaticity

1. 
Who proposed the aromatic, cyclic structure of benzene?
  1. Fredrich Kekule
  2. Michael Faraday
  3. Friedel Charles
  4. Friedel Craft
2. 
Aromatic compounds generally tend to undergo substitution reactions.
  1. True
  2. False
3. 
Aromatic compounds burn with a
  1. blue flame.
  2. green flame.
  3. red flame.
  4. sooty flame.
4. 
Which of the following reactions represents a Friedel-Crafts reaction?
  1. Benzene + Acetyl chloride [math]rarr[/math] Acetophenone
  2. Benzene + Methyl Chloride [math]rarr[/math] Toluene
  3. Benzene + Chlorine [math]rarr[/math] Hexachlorobenzene
  4. Sodium benzoate + Sodium hydroxide [math]rarr[/math] Benzene + Sodium carbonate
5. 
Which of the following functional groups acts as a deactivating, meta group on benzene rings?
  1. [math]-NO_2 group[/math]
  2. [math]-NH_2 group[/math]
  3. [math]-C_6H_5 group[/math]
  4. [math]-OH group[/math]
6. 
Based on Huckel's rule, how many [math]pi[/math] electrons exist in an aromatic compound?
  1. [math](4n +2) pi [/math] electrons, where n = 0,1,2,3, etc.
  2. [math](3n +1) pi [/math] electrons, where n = 1, 2,3, etc.
  3. [math](2n +1) pi [/math] electrons, where n = 0, 1, 2 , etc.
  4. [math](5n + 1) pi [/math] electrons, where n = 0, 1, 2,3, etc.
7. 
Which compound is formed when vapors of phenol are passed over heated zinc?
  1. Benzene
  2. Toluene
  3. Naphthalene
  4. Aniline
8. 
                         is a phenomenon in which two or more equivalent structures for a compound can be written which involve identical positions of atoms but differ in the arrangements of                         .
9. 
Briefly define an aromatic hydrocarbon.



10. 
The following polymer could be the result of which of the following processes?
Formula - Polystyrene
  1. Addition polymerization
  2. Substitution polymerization
  3. Condensation polymerization
  4. None of the above

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