Question

When a copper vessel is exposed to moist air for long, it acquires a dull green coating. The green material is a mixture of 

options



a) Copper oxide and Copper Nitrate

b) Copper hydroxide & Copper Carbonate

c) Copper carbonate and Copper sulphate

d) Copper hydroxide and Copper Nitrate

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Answer 1

Answer:

Copper hydroxide and copper carbonate.

Explanation:

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Answer 2

Option B

Explanation:

When copper vessel is exposed to air turns green in colour due to corrosion. It is so because the metal reacts with moisture and atmospheric gases to form a mixture of copper carbonate and copper hydroxide, which gives a green colour to the surface of copper vessel.

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Answer 3

Option B

Explanation:

When copper vessel is exposed to air turns green in colour due to corrosion. It is so because the metal reacts with moisture and atmospheric gases to form a mixture of copper carbonate and copper hydroxide, which gives a green colour to the surface of copper vessel.

Hope it helps you...