Reduction of methyl isocyanide gives:

Chloropicrin is manufactured by the reaction between $Cl_2$,$NaOH$ and

$Benzamide$ $\xrightarrow{Br_2 / NaOH} X$ $\xrightarrow[\text{alc. } KOH]{CHCl_3} Y$
The conversion of $X$ to $Y$ is

The correct order of base strength in benzene as a solvent for the given amines is:
$I: CH_3CH_2NH_2$
$II: (CH_3CH_2)_2NH$
$III: (CH_3CH_2)_3N$

Which of the following compounds is an example of a secondary amine?

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