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Chemical Properties of Metals: When Metals Are Burnt in Air

notes

METALS REACTION WITH AIR:-

Metals react with air to form metal oxides

Metal + Oxygen Metal Oxide

example:-

4Fe + 3O22Fe2O3

Iron reacts with oxygen to form iron oxide commonly known as Rust

2Cu + O2 → 2CuO

when copper is heated in air, it combines with oxygen to form copper(II) oxide, a black oxide.

Metals such as potassium and sodium react so vigorously that they catch fire if kept in the open. Hence, to protect them and to prevent accidental fires, they are kept immersed in kerosene oil.

Silver and gold do not react with oxygen even at high temperatures.

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Shaalaa.com | Metal and Non Metals part 4 (Reactivity series : Metal oxides)

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Metal and Non Metals part 4 (Reactivity series : Metal oxides) [00:03:02]
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