Chemistry - Redox Reactions Question with Solution | TestHub

$2\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2(\mathrm{s})\to 2\mathrm{PbO}(\mathrm{s})+4{\mathrm{NO}}_2(\mathrm{g})+{\mathrm{O}}_2$ (g)

${\mathrm{N}}_2(\mathrm{g})+{\mathrm{O}}_2(\mathrm{g})\to 2\mathrm{NO}(\mathrm{g})$

${\mathrm{Cl}}_2(\mathrm{g})+2\mathrm{OH}(\mathrm{aq})\to {\mathrm{ClO}}^{-}(\mathrm{aq})+{\mathrm{Cl}}^{-}(\mathrm{aq})$ $+4{\mathrm{H}}_2\mathrm{O}(l)$

${\mathrm{P}}_4(\mathrm{s})+3\mathrm{OH}(\mathrm{aq})+3{\mathrm{H}}_2\mathrm{O}(\mathrm{l})\to {\mathrm{PH}}_3(\mathrm{g})+3{\mathrm{H}}_2{\mathrm{PO}}_2^{-}(\mathrm{aq})$