Скачать или смотреть Oxidation Number Explained | Easy to Hard in 4 Minutes

Most students lose marks in oxidation number questions not because chemistry is hard, but because they don’t know where to start.
In this video, I explain oxidation number step by step, starting from basic rules and moving to harder exam-level questions. You’ll understand why oxygen is usually –2, how to apply rules correctly, and how to solve tricky questions like Na₂S₂O₃ without guessing.
This is a short and focused 4-minute chemistry lesson where one concept is explained clearly, without confusion or memorisation.
Perfect for Class 9, Class 10, and Class 11 students, especially those struggling with redox reactions and oxidation number problems.
If this video helped you, save it and revisit before exams.
Welcome to 4 mins chemistry.


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