What is the chemical formula of Hydrogen sulphide?

• (a) HS
• (b) H₂S
• (c) H₂S
• (d) H₂S₃

The chemical formula for hydrogen sulfide is represented as H₂S. This means that each molecule of hydrogen sulfide consists of two hydrogen atoms and one sulfur atom. So, the correct answer from your options is (b) H₂S.

Breaking Down the Formula

To understand why H₂S is the correct formula, let’s analyze the components:

• Hydrogen (H): This element has an atomic number of 1 and typically forms one bond. In hydrogen sulfide, there are two hydrogen atoms.
• Sulfur (S): With an atomic number of 16, sulfur can form multiple bonds. In H₂S, it forms two single bonds with the two hydrogen atoms.

Visualizing the Structure

Imagine a simple molecule where the sulfur atom is at the center, and the two hydrogen atoms are like arms extending outwards. This arrangement gives hydrogen sulfide its characteristic shape and properties.

Properties of Hydrogen Sulfide

Hydrogen sulfide is a colorless gas known for its distinct smell, often likened to that of rotten eggs. It is important in various fields, including:

• Environmental Science: It occurs naturally in volcanic gases and is produced by the decomposition of organic matter.
• Industrial Applications: Used in the production of sulfuric acid and in various chemical processes.

Safety Considerations

While hydrogen sulfide is useful, it is also highly toxic and can be dangerous in high concentrations. Understanding its chemical formula and properties is crucial for handling it safely in laboratory and industrial settings.

Conclusion

In summary, the correct chemical formula for hydrogen sulfide is H₂S, indicating its composition of two hydrogen atoms and one sulfur atom. This simple yet significant molecule plays a vital role in both nature and industry.