MetallurgyHardBloom L3
Question
Hoop's process of purification of aluminium involves formation of layers during electrolysis. It involves
Options
A.the three layers have same densities but different materials.
B.the three layers have different densities
C.the upper layer is of pure aluminium which acts as a cathode
D.the bottom layer is of impure aluminium which acts as an anode and middle layer consists of cryolite and BaF2.
Solution
Sol. Hoop’s process: -
(a) Consist of 3-layer of same density but different malarial.
(b) Upper layer pure Al act as cathode.
(d) Lower layer impure Al act as anode.
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