Fittig's reaction produces

Arrange the following compounds in order of increasing dipole moment.
$(I)$ Toluene
$(II)$ $m$-dichlorobenzene
$(III)$ $o$-dichlorobenzene
$(IV)$ $p$-dichlorobenzene

Which of the following is the correct order of electrophilic substitution for the given compounds?
$(i)$ Toluene
(ii) Isopropylbenzene
(iii) tert-Butylbenzene
(iv) Ethylbenzene

Identify the products $A$ and $E$ in the following reaction sequence:

$p-$Nitrobromobenzene can be converted to $p-$nitroaniline by using $NaNH_2$. The reaction proceeds through the intermediate named

Identify the product of the following reaction: