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प्रश्न
The ore that contains both iron and copper is ______.
विकल्प
copper pyrites
malachite
dolomite
azurite
MCQ
उत्तर
The ore that contains both iron and copper is copper pyrites.
Explanation:
Amongst the given ores; copper pyrite (CuFeS2), dolomite (MgCO3 · CaCO3), malachite [CuCO3 · Cu(OH)2] and azurite [2CuCO3 ·Cu(OH)2] only copper pyrite con tams both copper and iron.
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