Answer:anode mud
Answer:dissolve bauxite and render it a conductor of electricity
Answer:Ag and Au
Answer: roasting followed by reduction with carbon
Answer:Cu2S
Answer:greater solubility of the impurity in molten state than in solid
Answer:Highly electropostive elements
Answer: A molten mixture of Al2O3 and Na3AlF6
Answer:in presence of cryolite which forms a melt with lower melting point
Answer: FeSiO3
Answer: greater solubility of the impurity in the molten state than in the solid
Answer: Exothermic
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