HARD UNIT 4 - benzene Flashcards

1
Q

Why doesn’t the benzene ring take part in addition reactions?

A

Delocalised electrons are present.

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2
Q

What is the phenyl group - C6H5?

A

A benzene ring in which one hydrogen atom has been substituted by another group.

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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.

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4
Q

How do benzene rings take part in alkylation?

A

By reaction of a haloalkane using aluminium chloride.

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5
Q

What does nitration of benzene use?

A

Concentrated sulfuric acid and concentrated nitric acid.

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6
Q

What is the suffocation of benzene with?

A

Concentrated sulfuric acid.

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7
Q
A
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