Ores contain a large amount of impurities, which is called as:

ore

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gangue

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dust

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particulate

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Solution

The correct option is B gangue
Ores contain large amount of impurities, which is called as gangue. The process of removing of impurities by physical means of methods like hand picking, crushing or pulverizing and grinding) is called dressing of ore.

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Ores mined from the earth are usually contaminated with large amounts of impurities known as _______.

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