Hydrogen peroxide can be prepared in the laboratory by the action of dilute acids on metallic peroxide. In one method, sodium peroxide is added in samall amount at a time to a dilute solution of sulphuric acid in cold. Sodium peroxide can be replaced by barium peroxide. In this case, a paste of BaO_(2).8H_(2)O is prepared and added gradually to an ice-cold dilute sulphuric acid. Barium sulphate precipitates out leaving behind a dilute solution of hydrogen peroxide. Phosphoric acid can also be used in place of sulphuric acid. The correct increasing order of the acidity of CO_(2),H_(2)O and H_(2)O_(2) is

Hydrogen peroxide can be prepared in the laboratory by the action of d

1.	Hydrogen peroxide can be prepared in the laboratory by the action of dilute acids on metallic peroxide. In one method, sodium peroxide is added in samall amount at a time to a dilute solution of sulphuric acid in cold. Sodium peroxide can be replaced by barium peroxide. In this case, a paste of BaO_(2).8H_(2)O is prepared and added gradually to an ice-cold dilute sulphuric acid. Barium sulphate precipitates out leaving behind a dilute solution of hydrogen peroxide. Phosphoric acid can also be used in place of sulphuric acid. The correct increasing order of the acidity of CO_(2),H_(2)O and H_(2)O_(2) is
Answer» `CO_(2)ltH_(2)O_(2)ltH_(2)O` `H_(2)OltH_(2)O_(2)ltCO_(2)` `H_(2)OltH_(2)O_(2)gtCO_(2)` `H_(2)O_(2)gtCO_(2)gtH_(2)O` Solution :N//A