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p-Block Elements - I
easy
In the electrolytic extraction of aluminium, cryolite is used
A
To obtain more aluminium
B
To decrease temperature to dissolve bauxite
C
To protect the anode
D
As reducing agent
Solution
(b) Cryolite $N{a_3}Al{F_6}$ is added
(1) To decrease the melting temp from $2323\,K$ to $1140\,K$
(2) To increase the electrical conductivity of solution
Standard 11
Chemistry
