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Yogesh • 7.43K Points
Tutor III 

Q. Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?
(i) Au
(ii) Cu
(iii) Na
(iv) K

  • (A) (i) and (ii)
  • (B) (i) and (iii)
  • (C) (ii) and (iii)
  • (D) (iii)and (iv)
Correct Answer - Option (A)
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