Identify the amine formed when $ethyltrimethyl$ ammonium iodide is treated with silver hydroxide and further heated strongly.

Arrange the following compounds in decreasing order of basic strength:
$(i)$ Aniline
(ii) $p$-Nitroaniline
(iii) $p$-Cyanoaniline
(iv) $p$-Toluidine

Identify $X$ and $Y$ in the following reactions:
$Nitrobenzene \xrightarrow{Zn/NH_4Cl} X$
$Nitrobenzene \xrightarrow{Zn + KOH/C_2H_5OH} Y$

Aniline in a set of reactions yielded a product $D$. The structure of product $D$ would be:
Aniline $\xrightarrow{NaNO_2/HCl} A$ $\xrightarrow{CuCN} B$ $\xrightarrow{H_2/Ni} C$ $\xrightarrow{HNO_2} D$

Treatment of ammonia with excess of ethyl chloride will yield

Secondary and tertiary amines do not give the carbylamine test because...