Choose the INCORRECT Statement

question 79

Multiple Choice

Choose the INCORRECT statement.

• A)Precipitation in hydrometallurgy is to precipitate the metal as an ionic solid or reduce it to the metal.
• B)Leaching for gold is done by the cyanidation process where Au(s)is complexed with cyanide ion.
• C)Electrolytic method is used to purify expensive metals.
• D)Pyrometallurgy uses low temperature to freeze out the metal from the ore.
• E)Hydrometallurgy uses water and aqueous solutions at moderate temperatures to handle materials.

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