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Home/ Questions/Q 171590
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Saroj arora
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Saroj arora
Asked: December 1, 20212021-12-01T11:07:37+00:00 2021-12-01T11:07:37+00:00In: Class 10 Science

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

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100%[A] Au & Cu ( 3 voters )
0%[B] K & Na
0%[C] Cu & Na
0%[D] Cu & K
Based On 3 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.

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    1. Shreya Bala
      2021-12-02T10:26:47+00:00Added an answer on December 2, 2021 at 10:26 am

      [A] Au & Cu

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      Sundram
      2021-12-03T08:37:08+00:00Added an answer on December 3, 2021 at 8:37 am

      [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.

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