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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A mixture of nitric and sulfuric acid can be used to put a sulfonic acid group on a benzene ring.
The iron and HCl will convert a nitro group into an amino group on benzene.

The nitro group is a meta director.

A mixture of HBr and Br2 will convert benzene into bromobenzene.
Acylbenzenes may be converted to alkylbenzenes using hydrazine under basic conditions.
The mechanism for electrophilic aromatic substitution is one concerted step.
In the mechanism for electrophilic aromatic substitution, benzene acts as a weak electrophile.
Reaction of benzene with 1-chlorobutane/AlCl3 yields 2-phenylbutane.
Friedel-Crafts acylation can be used to avoid both polyalkylation and rearrangement.
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.
Formation of the sigma complex (arenium ion) is the rate determining step of electrophilic aromatic substitution.

Reaction of butylbenzene with acidic KMnO4 yields benzoic acid.

Addition reactions are not commonly seen with aromatic compounds.
Reaction of bromobenzene with chlorine/AlCl3 yields meta-bromochlorobenzene.
In electrophilic aromatic subsitution reactions, a strong acid is needed to generate the electrophile.

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