Q12Multiple choice
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)
Show answer
(a) (i) and (ii)