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Copper becomes green when exposed to mo...

Copper becomes green when exposed to moist air for longer period because of the formation of a layer of

A

The formation of basic copper sulphate layer on the surface of copper.

B

The formation of basic copper sulphate layer on the surface of the metal

C

the formation of a layer of cupric hydroxide on the surface of copper.

D

the formation of a layer of basic carbonate of copper on the surface of copper.

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The correct Answer is:
D
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GRB PUBLICATION-D-BLOCK ELEMENTS-Subjective Type
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