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Benzene
Quiz 3
Solution
Q.1.
What is the other name of hydrocarbon?
Alkenes
Alkynes
Arenes
Alkanes
Q.2.
How was the current accepted structure of benzene discovered?
NMR
Staring at it intently under an electron microscope
X-ray diffraction
Edexcel discovered it
Q.3.
What is the resonance energy of Benzene?
151 KJ mol-1
152 KJ mol-1
153 KJ mol-1
154 KJ mol-1
Q.4.
How did Kakule try to account for the initial problems with his original benzene structure?
Told his critics to deal with it
Crouched in a corner and cry
Proposed an equilibrium model
Made a new model with international bond length
Q.5.
Which mechanism an aromatic compounds react by?
Electrophilic addition
Electrophilic substitution
Nucleophilic addition
Nucleophilic substitution
Q.6.
What is the accepted current view of the model for bonding in benzene?
Delocalised model
Kekule structure
Resonance structure
Arrhenius structure
Q.7.
Which two of these statements about the delocalised model of benzene are true?
Each carbon has three sigma bonds with two other carbon atoms and one hydrogen atom, using three bonding electrons
Benzene is a regular hexagon of carbon bonds with the same length with bonds to hydrogen at the corners
The delocalised electrons form a ring of electron density in the plane of the benzene ring
Both A & B
Q.8.
Aromatic compounds usually undergo which type of reaction?
Electrophilic substitution reaction
Electrophilic addition reaction
Nucleophilic substitution reaction
Nucleophilic addition reaction
Q.9.
What is the other name of aromatic hydrocarbons?
Alkenes
Alkynes
Arenes
Alkanes
Q.10.
Benzene is ......
trigonal planar
boat shaped
planar
chair shaped
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