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PAH unit 1

Total questions: 11

Worksheet time: 11mins

Name
Class
Date
1.

The most Important Members of Polynuclear Aromatic Hydrocarbons are

a)

Naphthalene, anthracene, phenanthrene

b)

Benzene, Naphthalene, anthracene

c)

Butene, benzene, Naphthalene

d)

Benzene, Naphthol, Naphthalene,

2.

Starting materials for anthracene preparation is

a)

Pthalimide

b)

Pthalic anhydride

c)

Succinic anhydride

d)

1,4-dibromobutane

3.

The most shorted bond length in Anthracene is

a)

C1-C2

b)

C2-C3

c)

C4-C5

d)

C6-C7

4.

The most stable structure among the following option is

a)

Benzene

b)

Anthracene

c)

9-Acetylanthracene

d)

Naphthalene

5.

The most reactive position of Anthracene are

a)

1,2

b)

9,10

c)

2,9

d)

10,1

6.

Naphthalene undergoes electrophilic substitution reactions at

a)

C2

b)

C1

c)

C4

d)

C5

7.

Naphthalene undergoes sulfonation with conc H2SO4 at 165oC to form

a)

1-naphthalenesulfonic

b)

2-naphthalenesulfonic

c)

3-naphthalenesulfonic

d)

4-naphthalenesulfonic

8.

1-Naphthol reacts with benzene diazonium chloride (BDC) to form

a)

4-Phenylazo-1-naphthol

b)

2-Phenylazo-1-naphthol

c)

1-Phenylazo-1-naphthol

d)

3-Phenylazo-1-naphthol

9.

1-Naphthol reacts with benzene Nitros acid (HNO2) to form

a)

2-Oxime of 1-2-Naphthaquinone

b)

1-Oxime of 1-2-Naphthaquinone

c)

3-Oxime of 1-2-Naphthaquinone

d)

4-Oxime of 1-2-Naphthaquinone

10.

2-Naphthol undergoes reaction with conc sulfuric acid (H2SO4) at 40oC to form

a)

2-Naphthol-6-sulfonic acid

b)

2-Naphthol-8-sulfonic acid

c)

2-Naphthol-4-sulfonic acid

d)

2-Naphthol-2-sulfonic acid

11.

Benzoyl chloride reacts with itself in presence of AlCl3 to form

a)

Anthracene

b)

9,10-Dihydroanthracene

c)

Naphthalence

d)

Phenanthrence