Chemistry - AMINES Question with Solution | TestHub

$\mathrm{R}-\underset{\mathrm{N}{\mathrm{O}}_2}{\underset{|}{\mathrm{C}}{\mathrm{H}}_2}+\mathrm{O}=\mathrm{N}-\mathrm{O}\mathrm{H}\to \underset{\underset{\underset{\text{blood red colouration}}{\text{Dissolve in NaOH to give}}}{\left(\text{Nitrolic acid}\right)} }{\mathrm{R}-\underset{\mathrm{N}{\mathrm{O}}_2 }{\underset{|}{\mathrm{C}}=\mathrm{N}}-\mathrm{O}\mathrm{H}+{\mathrm{H}}_2\mathrm{O}}$

$\mathrm{R}-\underset{\mathrm{N}{\mathrm{O}}_2 }{\stackrel{\mathrm{R}}{\stackrel{|}{\underset{|}{\mathrm{C}}}}-\mathrm{R}}+\mathrm{H}\mathrm{N}{\mathrm{O}}_2\to$No reaction

$\text{R}-\underset{{\text{NO}}_{\text{2 }}}{\stackrel{\text{R}}{\stackrel{\text{|}}{\underset{\text{|}}{\text{C}}}}-\text{H}}+\text{HO}-\text{N}=\text{O}\to \underset{\underset{\underset{\text{but gives blue colouration}}{\text{Does not dissolve in NaOH,}}}{\left(\text{Pseudo}\text{nitrole}\right)} }{\text{R}-\underset{{\text{NO}}_{\text{2}} }{\stackrel{\text{R}}{\stackrel{\text{|}}{\underset{\text{|}}{\text{C}}}}-\text{N}}=\text{O}+{\text{H}}_{\text{2}}\text{O}}$

$\mathrm{P}\mathrm{h}\mathrm{N}{\mathrm{O}}_2+\mathrm{H}\mathrm{N}{\mathrm{O}}_2\to$No reaction