Home/ Questions/Q 171590
Next
Answered
Saroj arora
  • 2
Poll
Asked: 2021-12-01T11:07:37+00:00 In:

Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?

  • 2

Poll Results

85.71%[A] Au & Cu ( 6 voters )
0%[B] K & Na
14.29%[C] Cu & Na ( 1 voter )
0%[D] Cu & K
Based On 7 Votes

Participate in Poll, Choose Your Answer.

Gold (Ag) and copper (Cu) obtained after extraction are in impure form. So, metals like gold and copper are refined by electrolytic refining. Other than gold and copper, electrolytic refining is used for metals such as Zn and Ag. Sodium and potassium are extracted by electrolytic reduction. Metals obtained after electrolytic reduction are in pure form.

class 10 science mcq solutionsclass 10th science cbsc sample paper
Share

    2 Answers

    1. [A] Au & Cu

      • 1
    2. Best Answer

      [A] Au and Cu
      Copper and gold are in impure form after extraction. Copper and gold are refined by electrolytic refining method. But, Sodium and potassium are extracted by electrolytic reduction. Metals obtained after electrolytic reduction are in pure form.

      • 1
    Leave an answer

    Leave an answer

    Browse