Question

Why does Barium peroxide and sulfuric acid yield Ozone?

Answer 1

Hint: Barium oxides are of different types. Barium peroxide is an oxide with the chemical formula of \[Ba{O_2}\] . Sulphuric acid is a strong acid with the molecular formula of \[{H_2}S{O_4}\] . When barium peroxide and sulphuric acid were treated the products were barium sulphate and ozone along with water.

Complete answer:
Barium peroxide belongs to the family of barium oxides with the molecular formula of \[Ba{O_2}\] . It can be obtained from the reversible reaction of barium with oxygen gas.
Sulphuric acid is a strong acid with the molecular formula of \[{H_2}S{O_4}\] .
When barium peroxide and sulphuric acid are reacted, it results in the formation of barium sulphate along with the formation of hydrogen peroxide.
The chemical reaction involved will be as follows:
\[Ba{O_2} + {H_2}S{O_4} \to BaS{O_4} + {H_2}{O_2}\]
Barium sulphate is an ionic compound that does not soluble in water. The reaction has to be performed in ice cold solution, as the low temperature only favours the decomposition of hydrogen peroxide into water and oxygen gas.
The chemical reaction when performed in presence of potassium iodine like \[KI\] , the liberation of products were barium sulphate, water and ozone. As the hydrogen peroxide decomposes to give water and ozone.
\[3Ba{O_2} + 3{H_2}S{O_4} \to 3BaS{O_4} + 3{H_2}O + {O_3}\]

Note:
There is a difference in the formation of products in the above two reactions. It is due to the addition of potassium iodide, which can act as a catalyst and the condition of temperature, as the second reaction takes place at room temperature as low temperature results in the formation of oxygen but not ozone.