The impurities present in a crude ore is called gangue.

True

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False

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Solution

The correct option is A
True

Gangue is the collective term for the impurities present in an ore. These are found in addition to the principal metal component.

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The impurities present in a crude ore is called gangue.

Match the given terms used in metallurgy (Column I) with their respective meanings (Column II).

I	II
a. Roasting	i. Unwanted impurities present in the ore
b. Flux	ii. Heating ore just below its melting point in excess of air
c. Gangue	iii. Substance added to ores in order to remove impurities

The impurities present in mined ore are technically called

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