which of the gases in air unites with many metals
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Oxygen unites with may metals. such as iron oxide, aluminium oxide etc
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Oxygen reacts with many metals.
Explanation:
- Oxygen reacts with alkali metals and some of the noble metals like silver. Iron gets rusted on coming in contact with oxygen and moisture.
- When silver article is kept in open for a few hours it gets converted into a black form.
- This is due to the formation of silver oxide on reaction with the oxygen present in the air.
- This silver oxide is black in colour .This process is known as the rusting or tarnishing of silver.
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