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What is the process of removing impurities from ore called?

Answer and explanation

Correct answer: Concentration of ore

The unwanted earthy impurities such as sand and clay present in an ore are called gangue. Removing gangue to increase the proportion of the metal-bearing material is called concentration of ore. Roasting and calcination involve heating ores, whereas reduction produces the metal from its compound. Exam tip: if the question mentions removal of gangue, choose concentration of ore.

Related tags

Concentration Of OreOre DressingGangue RemovalMetallurgyMetals And Non-MetalsClass 10 ScienceCorrosion And Extraction BasicsMetals And Non Metals

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