Chemistry - Complete P-block Question with Solution | TestHub

Greater the number of $\mathrm{P}-\mathrm{H}$ bonds, greater is the reducing nature

${\mathrm{H}}_3{\mathrm{PO}}_3$ can show tautomerism

${\mathrm{H}}_4{\mathrm{P}}_2{\mathrm{O}}_6$ has two $\mathrm{P}-\mathrm{H}$ bonds

pyro phosphorous acid has two $\mathrm{P}-\mathrm{OH}$, two $\mathrm{P}-\mathrm{H}$, two $\mathrm{P}=\mathrm{O}$ bonds and one $\mathrm{P}-\mathrm{O}-\mathrm{P}$ bond