Explain the nomenclature of benzene-substituted compounds.

(N/A) Rule-$1$: For $IUPAC$ nomenclature of substituted benzene compounds,the substituent is placed as a prefix to the word benzene,as shown in the following examples:
| Compound | $IUPAC$ Name | Common Name |
| :--- | :--- | :--- |
| $C_6H_5CH_3$ | Methylbenzene | Toluene |
| $C_6H_5OCH_3$ | Methoxybenzene | Anisole |
| $C_6H_5C_2H_5$ | Ethylbenzene | - |
| $C_6H_5NH_2$ | Aminobenzene | Aniline |
| $C_6H_5OH$ | Hydroxybenzene | Phenol |
| $C_6H_5NO_2$ | Nitrobenzene | - |
| $C_6H_5Br$ | Bromobenzene | - |
| $C_6H_5SO_3H$ | Benzenesulphonic acid | -