Question

An aluminium wire gets tarnished on exposing. Why does it happen?​

Answer 1

The surface of the metal gets tarnished. This is due to the reaction with air. When metals come into contact with atmosphere, they undergo chemical reaction with different components of air. As a result, the metal loses its lustre and gets tarnished.

Answer 2

Answer:

The surface of the metal gets tarnished. This is due to the reaction with air. When metals come into contact with atmosphere, they undergo chemical reaction with different components of air. As a result, the metal loses its lustre and gets tarnished.

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