Biomolecules Part 2

Glutamine$\left[{\mathit{H}}_2\mathit{N}-\stackrel{\mathit{O}}{\stackrel{\left|\right|}{\mathit{C}}}-\mathit{C}{\mathit{H}}_2-\mathit{C}{\mathit{H}}_2-\stackrel{\mathit{N}{\mathit{H}}_2}{\stackrel{|}{\mathit{C}}}\mathit{H}-\mathit{C}\mathit{O}\mathit{O}\mathit{H}\right]$has amide functional group inside chain. So it gives Hoffmann bromamide reaction.
Lysine${\mathit{H}}_2\mathit{N}-{\left(\mathit{C}{\mathit{H}}_2\right)}_4-\stackrel{\mathit{N}{\mathit{H}}_2}{\stackrel{|}{\mathit{C}}}\mathit{H}-\mathit{C}\mathit{O}\mathit{O}\mathit{H}$ has $1$ amine group. So it gives +ve Hinsberg test.
Tyrosine has phenolic OH. So it gives +ve test with neutral$\mathit{F}\mathit{e}\mathit{C}{\mathit{l}}_3$.
Serine$\mathit{H}\mathit{O}-\mathit{C}{\mathit{H}}_2-\mathrm{overset}\mathrm{overset}\mathit{N}{\mathit{H}}_2|\mathit{C}\mathit{H}-\mathit{C}\mathit{O}\mathit{O}\mathit{H}$has alcohlic -OH group.
So it gives +ve test with cerric ammonium nitrate.