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
Acylbenzenes may be converted to alkylbenzenes using hydrazine under basic conditions.

The nitro group is a meta director.
Upon reaction with acidic potassium permanganate, t-butylbenzene becomes benzoic acid.
Reaction of toluene with CO, HCl, AlCl3, CuCl yields a mixture of ortho and para methylbenzaldehyde.

A mixture of HBr and Br2 will convert benzene into bromobenzene.
Formation of the sigma complex (arenium ion) is the rate determining step of electrophilic aromatic substitution.
A mixture of nitric and sulfuric acid can be used to put a sulfonic acid group on a benzene ring.
Reaction of bromobenzene with chlorine/AlCl3 yields meta-bromochlorobenzene.
The mechanism for electrophilic aromatic substitution is one concerted step.
In electrophilic aromatic subsitution reactions, a strong acid is needed to generate the electrophile.
Reaction of benzene with 1-chlorobutane/AlCl3 yields 2-phenylbutane.
In the mechanism for electrophilic aromatic substitution, benzene acts as a weak electrophile.
Friedel-Crafts acylation can be used to avoid both polyalkylation and rearrangement.
The iron and HCl will convert a nitro group into an amino group on benzene.

Addition reactions are not commonly seen with aromatic compounds.

Reaction of butylbenzene with acidic KMnO4 yields benzoic acid.

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