The increasing order of the following compounds for electrophilic substitution reaction is:
$(I)$ Toluene
$(II)$ Benzene
$(III)$ Benzoic acid

In the following sequence of reactions,the maximum number of atoms present in molecule $C$ in one plane is:
$A$ $\xrightarrow[Cu \text{ tube}]{\text{Red hot}} B$ $\xrightarrow[\text{Anhydrous } AlCl_3]{CH_3Cl (1 \text{ eq})} C$
($A$ is the lowest molecular weight alkyne)

Benzene + $CH_3CH_2CH_2CH_2Cl \xrightarrow{AlCl_3}$ hydrocarbon $(X)$. The major product $X$ is:

The following reaction is given:
$\xrightarrow{\text{Electrolysis}} A$
$A$ is

The correct order of reactivity of $(I)$ Aniline,$(II)$ Benzene,and $(III)$ Nitrobenzene towards electrophilic substitution reaction is .....

Identify the polynuclear aromatic compounds that are aromatic from the given structures:
$(i)$ Naphthalene
(ii) Anthracene
(iii) Phenanthrene