Chemistry - Redox Reactions Question with Solution | TestHub

(A) ${\mathrm{CH}}_4(\mathrm{g})+2{\mathrm{O}}_2(\mathrm{g})\stackrel{\Delta }{\to }2{\mathrm{CO}}_2(\mathrm{g})+{\mathrm{H}}_2\mathrm{O}(\mathrm{l})\Rightarrow$ combination reaction (B) 2 NaH (s) $\stackrel{\Delta }{\to }2\mathrm{Na}(\mathrm{s})+{\mathrm{H}}_2(\mathrm{g})\Rightarrow$ Decomposition reaction (C) ${\mathrm{V}}_2{\mathrm{O}}_5(\mathrm{s})+5\mathrm{Ca}(\mathrm{s})\stackrel{\Delta }{\to }2\mathrm{V}(\mathrm{s})+5\mathrm{CaO}(\mathrm{s})$ $\Rightarrow$ Displacement reaction (D) $2{\mathrm{H}}_2{\mathrm{O}}_2$ (aq.) $\stackrel{\Delta }{\to }2{\mathrm{H}}_2\mathrm{O}(\mathrm{l})+{\mathrm{O}}_2(\mathrm{g})$ $\Rightarrow$ Disproportionation reaction