question_answer

  Write the balanced chemical equation for the following and identify the type of reaction in each case. Potassium bromide(aq) + Barium iodide(aq)Potassium iodide(aq) + Barium bromide(s) Zinc carbonate(s)  Zinc oxide(s) + Carbon dioxide(g) Hydrogen(g) + Chlorine(g) ® Hydrogen chloride(g) Magnesium (s) + Hydrochloric acid(aq) Magnesium chloride(aq) + Hydrogen(g)                  (e)  Iron(III) oxide(s) + Carbon monoxide(g)  Iron(s) + Carbon dioxide (g) [NCERT]

Answer:

                  (a) 2KBr(aq) + Bal2(aq)  2KI(aq) + BaBr2(s);                                 Double displacement reaction (i)      ZnCO3(s)  ZnO(s) + CO2(g);     Decomposition reaction (c) H2(g) + Cl2)  2HCl(g-); Combination reaction (d) Mg(s) + 2HCl(aq)  MgCl2(aq) + H2(g);   Displacement reaction (e) Fe2O3(s) + 3CO(g)  2Fe(s) + 3CO2(g);   Redox reaction