The exact volumes of \(1\mathrm{M}\mathrm{NaOH}\) solution required to neutralize \(50\mathrm{mL}\text{of }1\mathrm{M}{\…

The exact volumes of \(1\mathrm{M}\mathrm{NaOH}\) solution required to neutralize \(50\mathrm{mL}\text{of }1\mathrm{M}{\mathrm{H}}_{3}{\mathrm{PO}}_{3}\) solution and 100 mL of \(2\mathrm{M}{\mathrm{H}}_{3}{\mathrm{PO}}_{2}\), solution respectively, are

[JEE Main 2021, 16 Mar (Shift 2)]