In Redox reactions, the Oxidation Number (or Oxidation State) represents the total number of electrons an atom gains or loses to form a chemical bond. Let's look at the rules for some key elements.
Oxygen (O): Mostly -2 (except peroxides).
Nitrogen (N): Varies from -3 to +5.
Sulphur (S): Varies from -2 to +6.
Carbon (C): Varies from -4 to +4.
Oxygen is highly electronegative.
Nitrogen is highly versatile and can exhibit many oxidation states.
Sulphur also shows multiple oxidation states.
Carbon, being the king of organic chemistry, shows a wide range.
The most common oxidation number of oxygen in its compounds is -2. However, in peroxides, it is -1.
What is the Formula of Chloride?
Learn the chemical formula and charge of the Chloride ion. Understand the difference between Chlorine atoms and Chloride ions in ionic bonds.
CNG Meaning: Full Form, Composition, and Uses
Learn the meaning and full form of CNG (Compressed Natural Gas). Understand its chemical composition (methane) and why it is a clean alternative to petrol.
CO2 Lewis Structure — Carbon Dioxide Geometry
Learn how to draw the Lewis structure for CO2 (Carbon Dioxide). Understand its linear geometry, double bonds, and lone pairs on the oxygen atoms.
What is a Colloidal Solution? Examples and Properties
Learn the exact definition of a colloidal solution. Understand the difference between true solutions, colloids, and suspensions with everyday examples.
What Is a Colloidal Solution? Particle Size, Tyndall Effect and Examples
A colloidal solution has particles of 1–1000 nm that scatter light (Tyndall effect) and do not settle. Examples include milk, fog, blood, and smoke. It is a heterogeneous mixture.
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