Hydrogen
1.0 Basic Information
2.0 Atomic and Physical Properties of Hydrogen (reference: NCERT)
3.0 Dihydrogen
4.0 Physical Properties
5.0 Chemical Properties
6.0 Uses of Dihydrogen
7.0 Compounds of Hydrogen
8.0 Hard and Soft Water
9.0 Hydrogen Peroxide
10.0 Volume strength of Hydrogen Peroxide
9.1 Preparation
By action of acid on peroxide: $$\begin{equation} \begin{aligned} N{a_2}{O_2} + {H_2}S{O_4} \to N{a_2}S{O_4} + {H_2}{O_2} \\ Ba{O_2} + {H_2}S{O_4} \to BaS{O_4} + {H_2}{O_2} \\\end{aligned} \end{equation} $$
- By electrolysis of $50\% $ $H_2SO_4$ or $NH_4HSO_4$: $${H_2}S{O_4} \to {H^ + } + HS{O_4}^ - $$
At Anode: $$\begin{equation} \begin{aligned} 2HS{O_4}^ - \to {H_2}{S_2}{O_8} + 2{e^ - } \\ {H_2}{S_2}{O_8} + 2{H_2}O \to 2{H_2}S{O_4} + {H_2}{O_2} \\\end{aligned} \end{equation} $$
At Cathode: $$2{H^ + } + 2{e^ - } \to {H_2} \uparrow $$
- By Catalytic Reduction of 2-alkyl anthraquinone to corresponding quinol and oxidsing the latter with oxygen.
