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Question

A scrap metal dealer gets a huge consignment of crude metallic Lead. For a profitable deal he needs to refine the metal using electrolysis. Which one of the following is a good choice for an electrolyte?


A

PbI2

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B

PbCl2

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C

PbSiF6

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D

All of the above

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Solution

The correct option is C

PbSiF6


PbSiF6 is the preferred choice of electrolyte. Sometimes a combination of PbSiF6 and H2SiF6 is used in the electrolytic refining process. (Impure or crude lead is the anode while a pure lead cathode is used).


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