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Benzene

Total questions: 15

Worksheet time: 10mins

Name
Class
Date
1.

Resonance stabilized is due to

a)

strong covalent bond

b)

strong pi bond

c)

delocaloisation of pi electrons

d)

delocalisation of sigma electrons

2.

Which of the following is correct for the benzene

molecule?

a)

It contains 12 hydrogen atoms.

b)

It is unsaturated.

c)

The carbon-carbon bonds are single.

d)

All the bond lengths are equal

3.

Name the following compound

a)

Benzene

b)

Benzol

c)

Phenyl

d)

Phenol

4.

Tick correct characteristic of aromatic compound

a)

Non-Cyclic

b)

All p-orbitals able to overlap to adjacent p-orbitals

c)

Follow Huckle's rule

d)

Have alternate single double bond

5.

Give the common name for the following structure

a)

Benzaldehyde

b)

Acethophenone

c)

Benzene aldehyde

d)

Benzoic acid

6.

Aromatic compounds usually undergo which type of reaction?

a)

Electrophilic substitution reaction

b)

Electrophilic addition reaction

c)

Nucleophilic substitution reaction

d)

Nucleophilic addition reaction

7.
What is the molecular formula of Benzene?
a)
C6H12
b)
C6H6
c)
C6H10
d)
C8H8
8.

Name the compound

a)

Nitro benzene

b)

Ammonia benzene

c)

Aniline

d)

amino benzene

9.

Which of the following compound is aromatic haloalkane?

I. C6H5Cl

II. C6H5CH2Cl

III. CH3CH2Cl

a)

I only

b)

I and II only

c)

II and III only

d)

I, II and III

10.

Choose the correct statement

a)

Carbon to carbon bond in benzene have the same bond length

b)

Cyclobutene has delocalised electrons

c)

C=C bond in cyclobutene is longer than C-C bond in butane

d)

All atoms in cyclobutene, pentane and benzene are planar

11.

What is the IUPAC name of the following compound?

a)

1-bromo-3-fluoronitrobenzene

b)

4-bromo-2-fluoronitrobenzene

c)

5-bromo-1-fluoronitrobenzene

d)

3-bromo-1-fluoronitrobenzene

12.

What is the IUPAC name of the following compound?

a)

4-bromo-3-chlorotoluene

b)

4-bromo-5-chlorotoluene

c)

1-bromo-2-chlorotoluene

d)

2-bromo-1-chlorotoluene

13.

what is 'n' in Huckel rule

a)

number of ring

b)

number of catom

c)

any integer

d)

none

14.

What is the other name of aromatic hydrocarbons?

a)

Alkenes

b)

Alkynes

c)

Arenes

d)

Alkanes

15.

Which of the following characteristics is not for aromatic compound

a)

Follow Huckle's rule

b)

All p-orbitals able to overlap to adjacent p-orbitals

c)

Open structure

d)

Have alternate single double bond