Science Quiz / Benzene Chemistry True-False

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Can you state whether each of these statements about benzene reactions is TRUE or FALSE?

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StatementTrue/False
In electrophilic aromatic subsitution reactions, a strong acid is needed to generate the electrophile.

Reaction of butylbenzene with acidic KMnO4 yields benzoic acid.
Reaction of benzene with 1-chlorobutane/AlCl3 yields 2-phenylbutane.
Reaction of toluene with CO, HCl, AlCl3, CuCl yields a mixture of ortho and para methylbenzaldehyde.
Acylbenzenes may be converted to alkylbenzenes using hydrazine under basic conditions.
Friedel-Crafts acylation can be used to avoid both polyalkylation and rearrangement.
Formation of the sigma complex (arenium ion) is the rate determining step of electrophilic aromatic substitution.

The nitro group is a meta director.
The mechanism for electrophilic aromatic substitution is one concerted step.
The iron and HCl will convert a nitro group into an amino group on benzene.
Reaction of bromobenzene with chlorine/AlCl3 yields meta-bromochlorobenzene.

A mixture of HBr and Br2 will convert benzene into bromobenzene.

Addition reactions are not commonly seen with aromatic compounds.
In the mechanism for electrophilic aromatic substitution, benzene acts as a weak electrophile.
Upon reaction with acidic potassium permanganate, t-butylbenzene becomes benzoic acid.
A mixture of nitric and sulfuric acid can be used to put a sulfonic acid group on a benzene ring.

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