Question

What is the gram equivalent weight of hydrogen peroxide as reductant?

Answer 1

Hint: Hydrogen peroxide is a chemical compound with the formula${H_2}{O_2}$.In its pure form, it is a very pale blue liquid, slightly more viscous than water. Hydrogen peroxide is the simplest peroxide. It is used as an oxidizer, bleaching agent, and antiseptic. Concentrated hydrogen peroxide, or "high-test peroxide", is a reactive oxygen species and has been used as a propellant in rocketry. Its chemistry is dominated by the nature of its unstable peroxide bond.

Complete answer:
As reductant hydrogen peroxide oxidised to oxygen. ${H_2}{O_{2 \to }}{O_2}$
The change in oxidation number is 2
The molar mass=34g
Gram equivalent weight of ${H_2}{O_2} = \dfrac{{34}}{2} = 17g$
Equivalent weight=152

Note: Hydrogen peroxide is unstable and slowly decomposes in the presence of light. Because of its instability, hydrogen peroxide is typically stored with a stabilizer in a weakly acidic solution in a dark colored bottle. Hydrogen peroxide is found in biological systems including the human body. Enzymes that use or decompose hydrogen peroxide are classified as peroxidases.