For the electrolytic refining of aluminium, the three fused layer… - Vidyadip

MCQ

For the electrolytic refining of aluminium, the three fused layers consist of

Bottom Layer

Middle Layer

Upper Layer

A

Cathode of pure $Al$

Cryolite and fluorspar

Anode of $Al$ and $Cu$ alloy
B

Cathode of $Al$ and $Cu$ alloy

Bauxite and cryolite

Anode of pure $Al$
✓

Anode of $Al$ and $Cu$ alloy

Cryolite and barium fluoride

Cathode of pure $Al$
D

Anode of impure $Al$

Bauxite, cryolite and fluorspar

Cathode of pure $Al$

✓

Answer

Correct option: C.

Anode of $Al$ and $Cu$ alloy

Cryolite and barium fluoride

Cathode of pure $Al$

c
It’s Obvious.

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