Astha has been collecting silver coin and copper coin one day she observed that a black coating on Silver coin and green coating on copper coin which chemical phenomenon is responsible for these coatings write the chemical name of a black and green coatings
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Explanation:
The phenomena responsible for the formation of a coating on copper and silver objects is known as corrosion. Silver turns black due to the formation of silver sulphide (Ag2S) while copper turns green due to the formation of a mixture of copper carbonate and copper hydroxide [(CuCO3)
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Answer:
Corrosion is responsible for this coating. Black coating is due to formation of Ag2S and green
coating is due to formation of CuCO3.Cu (OH)2
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