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The first process in extraction of an element from ore is typically ______

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The first process in extraction of an element from ore is typically ______

(a) roasting

(b) electrolysis

(c) crushing

(d) smelting

I have been asked this question in class test.

This is a very interesting question from Manufacturing Processes of Copper and its Alloys topic in division Copper and its Alloys of Aerospace Materials & Processes

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Right choice is (c) crushing

To elaborate: Crushing is one of the first things done in the extraction process of copper from its ore. Copper ore is crushed to a particular required size. Crushing is done to separate the particles to make it easier to obtain the pure material.

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