What is the metallurgical process of roasting?
A) A heating process done in the presence of carbon to reduce a metal oxide mineral to the metal.
B) A heating process done in the presence of carbon to reduce a metal sulfide mineral to the metal.
C) A heating process done in the presence of air to oxidize a metal mineral to the metal oxide.
D) A heating process done in the presence of air to convert a metal sulfide mineral to the metal oxide mineral.
E) A heating process done in the presence of air to reduce a metal oxide mineral to the metal.
Correct Answer:
Verified
Q9: Metals usually act as
A)oxidizing agents.
B)reducing agents.
C)conjugate bases.
D)conjugate
Q10: All of the following elements have the
Q11: Which element in Group IVA has the
Q12: Which of the following statements about the
Q13: Which of the following is not a
Q15: Choose the most metallic element.
A)As
B)P
C)Bi
D)N
E)Sb
Q16: Which of the following statements is true?
A)An
Q17: Bauxite is the principal ore of which
Q18: In the first stage of the Bayer
Q19: At which step in the production of
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