The basic character of amines can be explained by which of the following theories?

Which of the following is the least alkaline?

$C_2H_5Cl$ $\xrightarrow{KCN} X$ $\xrightarrow{H_2 / \text{Catalyst}} Y$ $\xrightarrow{CHCl_3 / KOH} Z$
What is '$Z$' in the above sequence of reactions?

Given below are two statements:
Statement $I$ : The $NH_2$ group in Aniline is ortho and para directing and a powerful activating group.
Statement $II$ : Aniline does not undergo Friedel-Craft's reaction (alkylation and acylation).
In the light of the above statements,choose the most appropriate answer from the options given below :

Which of the following reduction conditions is appropriate to isolate $Azoxybenzene$ as the major reduction product of $Nitrobenzene$?

Explain the electronic structure of amine compounds with a diagram.