to extract highly reactive metals electrolytic refining is the best method than reduction process why
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What is electrolytic refining? Electrolytic refining is a process of purifying metals by using an electrolytic cell. The impure metal is made the anode, and a pure metal is made the cathode. When an electric current is passed through the cell, the metal ions from Show more…
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The methods for extracting metals from their ores include (i) roasting a metal sulfide, (ii) chemical reduction of a metal oxide, and (iii) electrolysis. The preferred method depends on the $E^{\circ}$ value for the reduction half-reaction $\mathrm{M}^{n+}(a q)+n \mathrm{e}^{-} \rightarrow \mathrm{M}(s)$ (a) Which method is appropriate for the metals with the most negative $E^{\circ}$ values? (b) Which method is appropriate for the metals with the most positive $E^{\circ}$ values? (c) Which method is appropriate for metals $\mathrm{A}, \mathrm{B}, \mathrm{C},$ and $\mathrm{D}$ in the following periodic table?
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Describe with examples the chemical and electrolytic reduction processes used in the production of metals.
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