Chemistry - Complete s-block Question with Solution | TestHub

$\mathrm{M}\mathrm{n}{\mathrm{O}}_2$is added to dilute cold${\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_4$

$\mathrm{B}\mathrm{a}{\mathrm{O}}_2$is added to$\mathrm{C}{\mathrm{O}}_2$bubbling through cold water

$\mathrm{P}\mathrm{b}{\mathrm{O}}_2$is added to an acidified solution of$\mathrm{K}\mathrm{M}\mathrm{n}{\mathrm{O}}_4$

$\mathrm{N}{\mathrm{a}}_2{\mathrm{O}}_2$is added to boiling water