The product of the following reaction is:

Total number of secondary amines (excluding stereoisomers) possible with the molecular formula $C_5H_{13}N$ is

Identify the reagents $(X, Y, Z)$ used in the conversion of $3$-methylaniline to $3$-nitrotoluene.

What is the correct order of basic strength for $NH_3$,$CH_3NH_2$,and $(CH_3)_2NH$?

Isomeric amines with molecular formula $C_8H_{11}N$ give the following tests:
Isomer $(P) \Rightarrow$ Can be prepared by Gabriel phthalimide synthesis.
Isomer $(Q) \Rightarrow$ Reacts with Hinsberg's reagent to give a solid insoluble in $NaOH$.
Isomer $(R) \Rightarrow$ Reacts with $HONO$ followed by $\beta$-naphthol in $NaOH$ to give a red dye.
Isomers $(P), (Q)$ and $(R)$ respectively are:

Which of the following compounds gives an even number of Hoffmann's exhaustive methylation and elimination cycles?