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(a) In extraction of Aluminium by electr...

(a) In extraction of Aluminium by electrolysis,
(i) Write ovreall cell reaction.
(ii) What is the role of cryolite?
(b) Name the metal refined by Mond's process.

Text Solution

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(a) (i) `2Al_2O_3 +3C to 4Al + 3CO_2`
(ii) Lowers the melting point of the mixture and increases the electrical conductivity.
(b) Nickel .
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