Which one of the following compounds is prepared in the laboratory from benzene by a substitution reaction?

Which of the following is not an example of a benzenoid compound?

Which among the following sources contains caryophyllene?

Nitration of toluene occurs at the ....... position.

The condition required for an aromatic ring is that it must contain $... \pi-$ electrons.

Arrange the following compounds in decreasing order of their reactivity towards electrophilic substitution $(E^{+})$:
$C_6H_5NH_2$,$C_6H_5NHCOCH_3$,$C_6H_6$,$C_6H_5SO_3H$