Chemistry - Complete P-block Question with Solution | TestHub

Phosphinic acid is hypo phosphorous acid $\left({\mathrm{H}}_3{\mathrm{PO}}_2\right)$.

$\mathrm{NaOH}+{\mathrm{H}}_3{\mathrm{PO}}_2 \to {\mathrm{NaH}}_2{\mathrm{PO}}_2+{\mathrm{H}}_2\mathrm{O}$

For neutrization

${\left({\mathrm{N}}_1{\mathrm{V}}_1\right)}_{\mathrm{acid}}={\left({\mathrm{N}}_2{\mathrm{V}}_2\right)}_{\mathrm{base}}$

$0.1\times 10=0.1\times {\left({\mathrm{V}}_{\mathrm{mL}}\right)}_{\mathrm{NaOH}}$

${\mathrm{V}}_{\mathrm{NaOH}}=10 \mathrm{mL}$