Choose the INCORRECT statement.
A) Hydrometallurgy handles materials as aqueous solutions.
B) The three steps of hydrometallurgy are leaching,purification and/or concentration and precipitation.
C) Leaching is adding chemicals to eat away the ore,leaving the metal.
D) Purification in hydrometallurgy is to remove impurities and concentrate solutions.
E) Purification in hydrometallurgy may include evaporation of water,ion exchange,and/or use of activated charcoal.
Correct Answer:
Verified
Q41: Write the equation for the initial treatment
Q42: Which of the following is amphoteric?
A)V2O5
B)CrO
C)Al(H2O)63+
D)Fe(H2O)63+
Q43: Choose the INCORRECT statement about metallurgy.
A)Zone refining
Q44: An iron plate of 0.559 m2 surface
Q45: MnO4-(aq)produces what manganese-containing species when used as
Q47: Choose the INCORRECT statement.
A)Titanium is valued for
Q48: Choose the INCORRECT statement.
A)The extraction of copper
Q49: If an aqueous solution is prepared by
Q50: At 273 K,ΔG° for the reaction
2 C(s)+
Q51: What volume of carbon monoxide,measured at 1200
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