Group 16 (Oxygen Family) – Complete Study Notes (Class 12 | JEE Advanced | JEE Main | NEET UG)

These notes cover all essential concepts with clear explanations, important trends, reactions, exceptions, and exam-oriented concepts for effective preparation.

These are the same notes I used during my JEE preparation, through which I scored 102 marks in Chemistry in JEE Advanced. I am a student at IIT BOMBAY ,They are organized for conceptual understanding, efficient revision, and solving advanced-level questions.

Topics Covered

• Introduction to Group 16 Elements

• Electronic Configuration

• Physical and Chemical Properties

• Periodic Trends

  • Atomic and Ionic Radii

  • Ionization Enthalpy

  • Electron Gain Enthalpy

  • Electronegativity

• Oxidation States

• Anomalous Behaviour of Oxygen

• Catenation

• Allotropy of Oxygen

  • Dioxygen (O₂)

  • Ozone (O₃)

• Preparation, Properties, and Uses of Ozone

• Oxides

• Hydrides of Group 16

  • Water (H₂O)

  • Hydrogen Peroxide (H₂O₂)

• Sulphur

  • Allotropic Forms

  • Properties and Uses

• Sulphur Dioxide (SO₂)

• Sulphuric Acid (H₂SO₄)

  • Contact Process

  • Properties and Uses

• Important Exceptions and JEE-Oriented Concepts

• Solved Practice Problems

• Exam-Oriented Tips and Quick Revision Notes

These notes are written in simple English and are ideal for quick revision as well as in-depth understanding of the chapter.