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CBSE Notes 2011-2012

Which of the following are refined by electrolytic refining ? (i) Zn (ii) Cu (iii) AI (iv) Na

Multiple choice question

Which of the following are refined by electrolytic refining ?
(i) Zn (ii) Cu
(iii) AI (iv) Na

unknown

(i) and (ii)

unknown

(ii), (iii) and (iv)

unknown

(i), (ii) and (iv)

unknown

(i), (ii) and (iii)