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The ore that contains both iron and copper is -

1. dolomite
2. malachite
3. copper pyrites
4. azurite

Correct answer: copper pyrites

Solution

Copper pyrites, CuFeS2 (chalcopyrite), contains both iron and copper. Dolomite is Ca/Mg, while malachite and azurite are copper-only carbonate ores. So the correct choice is copper pyrites.

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