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Why does the copper vessel gets …

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Why does the copper vessel gets coated with a green putting during rainy season?

Posted by Priyanshu Kumar 8 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Payal Singh 8 years, 6 months ago

Copper metal when exposed to air turns green in colour due to corrosion. When copper vessel is exposed to air in rainy season, the metal reacts with gases and moisture and atmospheric gases to form a mixture of copper carbonate and copper hydroxide.

This gives a green colour to the surface of copper metal.

The reaction is as follows:

2Cu + H₂O + CO₂ + O₂ {tex}\to {/tex} Cu(OH)₂ + CuCO₃

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CBSE > Class 10 > Science