Question

The reaction ${H_2}S + {H_2}{O_2} \to S + 2{H_2}O$ manifests
A. Acidic nature of ${H_2}{O_2}$
B. Alkaline nature of ${H_2}{O_2}$
C. Oxidising nature of ${H_2}{O_2}$
D. Reducing action of ${H_2}{O_2}$

Answer 1

A chemical reaction is a process that results in the chemical change of one set of chemical substances into another set of chemical substances. Chemical reactions are often defined as changes in the locations of electrons in the formation and breaking of chemical bonds between atoms, with no change in the nuclei (no change in the elements present), and may be represented using a chemical equation.

Complete answer:
The chemical compound hydrogen sulphide has the formula ${H_2}S$. It's a colourless chalcogen hydride gas that smells like rotting eggs. It's combustible, toxic, and corrosive. The microbial decomposition of organic waste in the absence of oxygen gas, such as in swamps and sewers, produces hydrogen sulphide; this process is known as anaerobic digestion and is carried out by sulfate-reducing bacteria.
The simplest peroxide (a chemical having an oxygen–oxygen single bond) is hydrogen peroxide. In the presence of light, it progressively decomposes. Hydrogen peroxide is usually kept in a dark coloured container with a stabiliser in a mildly acidic solution. The human body contains hydrogen peroxide, which is present in biological systems. Peroxidases are enzymes that utilise or breakdown hydrogen peroxide.
${H_2}S{\text{ }} + {\text{ }}{H_2}{O_2}\; \to {\text{ }}S{\text{ }} + {\text{ }}2{H_2}O$
As S is oxidised from -2 to 0 oxidation states, the reaction demonstrates the oxidising tendency of ${H_2}{O_2}$.
${H_2}{O_2}$ is an oxidising agent, while ${H_2}S$ is a reducing agent.
This is a redox reaction (oxidation-reduction).
Hydrogen sulphide is a colourless compressed liquid gas with a rotten egg odour.

Hence, option (A) is correct.

Note:
The chemical species that loses an electron is said to have been oxidised, whereas the chemical species that gains an electron is said to have been reduced. To put it another way.
The loss of electrons or a rise in the oxidation state of an atom, an ion, or specific atoms in a molecule is referred to as oxidation.
The gain of electrons or a drop in the oxidation state of an atom, an ion, or specific atoms in a molecule is referred to as reduction (a reduction in oxidation state).