Identify each of the following reactions as being a neutralization, precipitation, or oxidation– reduction reaction.a) Fe2O3(s) + 3CO(g) →2Fe(s) + 3CO2(g)b) Na2SO4(aq) + Hg(NO3)2(aq) →HgSO4(s) + 2NaNO3(aq) c) CsOH(aq) + HClO4(aq) →Cs(aq) + 2H2O(l) + ClO4 (aq) d) Mg(NO3)2(g) + Na2S(aq) →MgS(s) + 2NaNO3(aq)