Question

metals are refined by using different
methods. Which of the following
metals are refined by electrolytic
refining?
a) Au
b) Cu
C) Na
d) K​

Answer 1

Answer:

K

Na

Explanation:

because they are high reactive metals

plzzz mark it as brainliest plzzzz

Answer 2

Answer:

the correct answere is b. Cu

but in some books the answere is d.K

hope its help you