Worksheets4.1 Introduction to benzene
Total questions: 17
Worksheet time: 10mins
What is aromatic compound?
Hydrocarbon that has smell
Organic compound that contain benzene ring in its molecule .Must be cyclic ,planar and completely conjugated and follow Huckle's rule
Organic compound that follow Huckle's rule only
Cyclic structure
Tick correct characteristic of aromatic compound
Non-Cyclic
All p-orbitals able to overlap to adjacent p-orbitals
Follow Huckle's rule
Have alternate single double bond
Open structure
Is this aromatic compound or not?
Yes
No
How about this one ?
Aromatic compound
Non-aromatic compound
Identify the aromaticity of this compound
(a)
Does hexatriene an aromatic compound or not?
(a)
Which compound below is aromatic?
what is 'n' in Huckel rule
number of ring
number of catom
any integer
none
Write the name of scientist who gave the structure of benzene first.
(a)
The bond length of c-c bond in benzene is
1.45 A
1.38A
1.33A
1.23A
Resonance stabilized is due to
strong covalent bond
strong pi bond
delocaloisation of pi electrons
delocalisation of sigma electrons
How many electrons are there in the delocalised pi electron system in benzene?
3
6
9
12
The empirical formula of benzene is
CH
C2H4
C6H6
C6H12
Which of the compounds is/are aromatic?
What is the other name of aromatic hydrocarbons?
Alkenes
Alkynes
Arenes
Alkanes
What did Kekulé suggest as a structure for benzene?
A long, long chain of carbons and hydrogens with alternating single and double bonds between the carbons
A 3D cage of carbons with a complex system of bonds between them, with one hydrogen attached to each carbon
A ring of six carbons with alternating single and double bonds between the carbons, with one hydrogen atom bonded to each carbon
A ring of six carbon atoms with a stable, delocalised system of s-electrons forming bonds between the carbons and the single hydrogen atom bonded to each carbon
