1.

Cryolite is

Answer»

`Na_3AlF_6`and is usedintheelectrolysis ofaluminaforloweringthe meltingpointofaluminaonly
` Na_3AlF_ 6 `and is usedintheelectrolyticrefining ofalumina
` Na_3AlF_6` andis used intheelectrolysisofaluminafordecreasingelectricalconductivity
`Na_3AlF_ 6` and is usedin theelectrolysisof aluminaforloweringthe melting pointand INCREASINGTHE conductivityof ALUMINA.

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