Metals are refined by using different methods | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Electrolytic refining is a process used to purify metals that are obtained from their ores.Many metals like $Cu$,$Zn$,$Sn$,$Ni$,$Ag$,and $Au$ are

Vedclass · Accepted Answer

$(i)$ and $(ii)$

Vedclass · Answer

(D) Electrolytic refining is a process used to purify metals that are obtained from their ores.Many metals like $Cu$,$Zn$,$Sn$,$Ni$,$Ag$,and $Au$ are refined electrolytically.In this process,the impure metal is made the anode and a thin strip of pure metal is made the cathode.Highly reactive metals like $Na$,$K$,$Ca$,and $Mg$ are obtained by the electrolytic reduction of their molten chlorides or oxides,not by electrolytic refining of the impure metal.Therefore,among the given options,$Cu$ and $Au$ are refined by electrolytic refining.Thus,the correct pair is $(i)$ and $(ii)$.

Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?
$(i)$ $Au$
$(ii)$ $Cu$
$(iii)$ $Na$
$(iv)$ $K$

Similar Questions

Which of the following metals exists in nature in liquid state?

Which metal is purified by the method of liquation?

Galvanisation is a method of protecting iron from rusting by coating with a thin layer of :

Name one metal and one non-metal that are found in a liquid state at room temperature.

The metals which are mixed with iron to make stainless steel are:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?$(i)$ $Au$$(ii)$ $Cu$$(iii)$ $Na$$(iv)$ $K$