Roasting is ________.
A) forming metal parts using heat and small crystals of metal
B) the process of heating an ore to drive off volatile compounds
C) selectively dissolving a metal in solution to separate it from its ore
D) heating an ore in the presence of oxygen or another substance to purify the ore and obtain the liquid metal
E) heating an ore in the presence of oxygen or another substance to cause a chemical reaction that drives off newly formed volatile compounds
Correct Answer:
Verified
Q1: Calcination is _.
A) heating an ore in
Q2: Powder metallurgy is _.
A) refining of metal
Q4: Smelting is _.
A) heating an ore in
Q5: Electrometallurgy is _.
A) refining of metal ores
Q6: Which of the following describes gangue?
A) the
Q7: Leaching is _.
A) melting an ore and
Q8: Identify the substances that are homogeneous, naturally
Q9: Which of the following processes is used
Q10: Hydrometallurgy is _.
A) refining of metal ores
Q11: Which of the following is a general
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