Question

Which of the following substances is a good oxidizing agent?

• A. Coke
• B. Calcium
• C. Hydrogen peroxide
• D. Sodium

Answer 1

The correct option is C

Hydrogen peroxide

Substances which act as a source of electrons are considered as reducing agents. Sodium and Calcium can donate the electrons in its outer most shells to become $N{a}^{+}$ and $C{a}^{2+}$

Also, substances which can accept oxygen would reduce other substances. Coke is nothing but pure carbon. It can oxidise itself to $CO$ or $C{O}_2$ reducing its counterparts.

Where as hydrogen peroxide is a good oxidising agent because it gives oxygen. This results it to be reduced to water.