Aniline when treated with conc. $HNO_3$ gives:

What is the final product $C$ in the reaction sequence: $CH_3CH_2NH_2$ $\xrightarrow{HNO_2} A$ $\xrightarrow{PCl_5} B$ $\xrightarrow{NH_3} C$?

What is the expected order of basic strength of different compounds from the following in the aqueous phase?

Which of the following products is a Schiff base?
$C_2H_5NH_2 \xrightarrow{HNO_2} a$
$C_2H_5NH_2 \xrightarrow{C_6H_5CHO} b$
$C_2H_5NH_2 \xrightarrow{NOCl} c$
$C_2H_5NH_2 \xrightarrow{C_6H_5SO_2Cl} d$

Identify the final product $Z$ in the following reaction sequence:

In the carbylamine reaction,the number of moles of $KOH$ and $CHCl_3$ used per mole of isocyanide produced are $X_1$ and $X_2$ respectively. Find out $X_1 - X_2$.