Chemistry - Complete P-block Question with Solution | TestHub

P. White ${\mathrm{P}}_4+$ Alkali $\stackrel{{\mathrm{H}}_3{\mathrm{O}}^{+}}{\to }{\mathrm{H}}_3{\mathrm{PO}}_2+{\mathrm{PH}}_3$

Q. Red P+ Alkali $\stackrel{{\mathrm{H}}_3{\mathrm{O}}^{+}}{\to }{\mathrm{H}}_4{\mathrm{P}}_2{\mathrm{O}}_6$ (hypophosphoric acid)

R. Ortho phosphoric acid $\underset{\Delta }{\overset{220^{\circ }\mathrm{C}}{\to }}{\mathrm{H}}_4{\mathrm{P}}_2{\mathrm{O}}_7$

S. Phosphorous acid $+{\mathrm{Br}}_2\stackrel{\text{ heat in sealed tube }}{\to }{\left({\mathrm{HPO}}_3\right)}_{\mathrm{n}}$