Question

When a copper vessel is exposed to moist air for a long time, it acquires a dull green
coating on its surface. The material of this green coating is a mixture of
(A) copper oxide and copper sulphate
(B) copper carbonate and copper
hydroxide
(C) copper oxide and copper carbonate
(D) copper hydroxide and copper sulphate​

Answer 1

copper carbonate and copper Hydroxide is the correct option

this is because when copper is exposed to moist air for a long time it requires a dull green colour because of the formation of basic copper carbonate which is copper hydroxide and copper carbonate

Answer 2

Answer:

(B) copper carbonate and copper hydroxide is your answer.

Explanation:

When a copper vessel is exposed to moist air for a long time, it acquires a dull green coating on its surface. The material of this green coating is a mixture of copper carbonate and copper hydroxide.

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