Question

Which of the following is not a process of preparation of hydrogen peroxide?

• A. Auto-oxidation of 2-ethylanthraquinol.
• B. By passing oxygen through boiling water
• C. By oxidation of isopropyl alcohol
• D. By reaction of barium peroxide with dil. $H_{2}S{O}_4$

Answer 1

Answer: (B)

By passing oxygen through boiling water

Preparation of 2-ethylanthraquinol

preparation of $H_2{O}_2$

(i) 2- ethylanthrquinol $\underset{H_2/pd}{\overset{O_2}{\to }}{H}_2{O}_2+$ oxidized product

(ii) By reaction of barium oxide (per)with

dif.$H_{2}S{O}_4$

$Ba{O}_2.8H_{2}O\left(s\right)+H_{2}S{O}_4\to BaS{O}_4+H_2{O}_2+8H_{2}O$

(iii) By oxidation of is propyl (alcohol)

Option B will not give $H_2{O}_2$