A copper article kept in a showcase looses its shine with time because of the formation of:

Oxide

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Hydroxide

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Chloride

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Sulphate

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Solution

The correct option is A Oxide
Due to corrosion of the metal, which is chemically the formation of oxides, the metal loses its lustre, since the copper article is now coated with cupric oxide.

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A copper article kept in a showcase looses its shine with time because of the formation of:

The correct option is A OxideDue to corrosion of the metal, which is chemically the formation of oxides, the metal loses its lustre, since the copper article is now coated with cupric oxide.

The correct option is A Oxide
Due to corrosion of the metal, which is chemically the formation of oxides, the metal loses its lustre, since the copper article is now coated with cupric oxide.