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The ore that contains both iron and copper is:

(1) malachite

(2) dolomite

(3) azurite

(4) copper pyrites
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General principles and processes of isolation of elements, occurrence of metal

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Ans: (4) copper pyrites

Sol: Copper pyrites : CuFeS2

Malachite : Cu(OH)2 . CuCO3

Azurite Cu(OH)2 . 2CuCO3

Dolomite CaCO3 . MgCO3

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