HARD UNIT 4 - benzene Flashcards
1
Q
Why doesn’t the benzene ring take part in addition reactions?
A
Delocalised electrons are present.
2
Q
What is the phenyl group - C6H5?
A
A benzene ring in which one hydrogen atom has been substituted by another group.
3
Q
What electrophilic substitution reactions does benzene take part in?
A
Halogenation using aluminium chloride or iron(III) chloride for chlorination.
Halogenation with aluminium bromide or iron(III) bromide for bromination.
4
Q
How do benzene rings take part in alkylation?
A
By reaction of a haloalkane using aluminium chloride.
5
Q
What does nitration of benzene use?
A
Concentrated sulfuric acid and concentrated nitric acid.
6
Q
What is the suffocation of benzene with?
A
Concentrated sulfuric acid.
7
Q
A
