The use of heat treatment of ore that includes smelting and roasting i – McqOptions

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1.	The use of heat treatment of ore that includes smelting and roasting is termed as :
A.	Electrometallurgy
B.	Hydrometallurgy
C.	Pyrometallurgy
D.	Cryometallurgy
Answer» D. Cryometallurgy

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