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Cryolite is...

Cryolite is

A

`Na_3AlF_6` and is used in the electrolysis of alumina for lowering the melting point and increasing the conductivity of alumina.

B

`Na_3AlF_6` and is used in the electrolysis of alumina for decreasing electrical conductivity

C

`Na_3AlF_6` and is used in the electrolysis of alumina

D

`Na_3AlF_6` and is used in the electrolysis of alumina for lowering the melting point of alumina only

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The correct Answer is:
A
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