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Question

Which of the following metallurgical processes does not involve heating ?

A
Smelting
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B
Calcination
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C
Roasting
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D
Leaching
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Solution

The correct option is A Leaching
Leaching is the metallurgical process that does not involve heating. Leaching is the process of extracting a soluble material from an insoluble solid by dissolving out in a suitable solvent.

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