Zone refining is a method to obtain:

Moderately pure metals

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Ultrapure Al

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Ultrapure metals

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ultrapure oxides

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Solution

The correct option is C
Ultrapure metals

Highly pure metals are obtained from zone refining method because the impurities melt and are collected in the impure zone. Since multiple passes can be made along the length of the metal (to be purified), the process yields very high purity levels.

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\begin{matrix} Column I & Column II (A) Cyanide process & (P) Ultrapure G e (B) Floatation process & (Q) Dressing of H g S (C) Electrolytic reduction & (R) Extraction of A l (D) Zone refining & (S) Extraction of A u \end{matrix}

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