Which cations are aromatic?

Which of the following is NOT a correct statement about Friedel-Crafts acylation reaction of benzene ?

When nitrobenzene is subjected to Friedel-Crafts alkylation using methyl chloride and AlCl3, the products are

p-nitrotoluene upon further nitration should yield

Chlorination of m-chlorotoluene yields

If Zn(Hg) in HCl is used to reduce carbonyl compounds, which of the following is the product from the reaction sequence shown below?   

4.1 Ejemplo: C   4.2 [answer1] (1) 4.3 [answer2] (1) 4.4 [answer3] (1) 4.5 [answer4] (1)

5.2 ¿Con quién fue de vacaciones? (1)

2.5 María prefiere… (1)

5.3 ¿Dónde se alojaron? (1)