copper vessels get a green coat when exposed to air in rainy season

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Solution

Copper metal when exposed to air turns green in colour due to corrosion. Thus, when copper vessels are exposed to air in rainy season for sometime, the metal reacts with gases and moisture present in air to form a mixture of copper carbonate and copper hydroxide [(CuCO₃). Cu(OH)₂]. This gives a green colour to the vessels.

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Why does copper vessel acquire green coating in rainy season?

Q. Why does a copper vessel get covered with a green coating in rainy season?

When copper vessels are exposed to moist air for a long time, a green coating is formed. Which are the constituents of the coating?
(i) Copper hydroxide
(ii) Copper carbonate
(iii) Copper oxide

When a vessel is exposed to moist air for a long time,then a green coating is formed on its surface.The vessel must be made of :

(a) zinc

(b) magnesium

(d) copper

When a copper object is exposed to moist air for a long time,then a green coating is formed on its surface.

(a) What is the material of the green coating ?

(b) State whether the green coating is acidic or basic.

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