Polynuclear Aromatic Hydrocarbons

Question 1

Define polynuclear aromatic hydrocarbons

Answer 1

Composed of two or more fused benzene rings

Question 2

What is naphthalene ?

Answer 2

The simplest fused aromatic compound, consisting of two fused benzene rings

Question 3

Answer 3

Naphthalene

Question 4

What happens as the number of fused aromatic rings increases ?

Answer 4

The resonance energy per ring continues to decrease and the compounds become more reactive

Question 5

Answer 5

Anthracene

Question 6

Answer 6

Phenanthrene

Question 7

What reaction does anthracene and phenanthrene undergo ?

Answer 7

Addition reaction, because they are less stabilized than benzene

Question 8

Answer 8

These three compounds are found in tobacco smoke and are very hazardous

Question 9

Give an example of fused heterocyclic compound

Answer 9

Purine

Question 10

Answer 10

Purine

Question 11

Fused heterocyclic compounds are common…

Answer 11

In nature

Question 12

What is the application of fused heterocyclic compounds ?

Answer 12

Used as drugs to treat wide variety of illnesses