A.) magnesium oxide + hydrochloric acid
B.) calcium carbonate + nitric acid
C.) sodium hydroxide + sulfuric acid
D.) acidified potassium manganite(VII) + iron(II) sulfate
E.) potassium carbonate + hydrochloric acid
F.) zinc + hydrochloric acid
G.) potassium iodide + sodium thiosulfate

1.) In which of the above reactions Titration method can be used?
2.) Suggest an indicator that can be used for the acid-alkali titration(s).