Classification of metals according to their chemical activity

The video explains the chemical activity of metals, classifying them into very active, less active, and inactive categories based on their reactivity with oxygen. Very active metals like sodium and potassium react quickly with air and are stored in kerosene. Less active metals such as aluminum, copper, and iron form rust over time and require protective coatings. Inactive metals like gold and silver are resistant to oxidation and are used in jewelry and protective coatings.

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