Styrene at room temperature is

Which of the following molecules is not aromatic?

What is the expected order of reactivity of the following compounds in electrophilic chlorination $(Cl_2 + FeCl_3)$? (more reactive $ > $ less reactive)
$I: C_6H_5CH_2CO_2H$
$II: C_6H_5N(CH_3)_2$
$III: C_6H_5OCOCH_3$
$IV: C_6H_5CCl_3$

Which one of the following reactions does $NOT$ give benzene as the product?

Which of the following species is expected to have maximum enthalpy in an electrophilic aromatic substitution reaction?

The major product of the reaction,$1$-methyl-$4$-isopropylbenzene + $CH_3COCl \xrightarrow{AlCl_3}$ is: