4)Metals are refined by using different methods. Which of thefollowing – InterviewSolution

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1.	4)Metals are refined by using different methods. Which of thefollowing metals are refined by electrolytic refining?(i) Ag(iii) Na(ii) Cu(iv) Al(B) (i) and (ii)(D) (iii) and (iv)(A)(i) and (iii)(C)(ii) and (iii)
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