Question

 In the commercial electrochemical process for aluminum extraction, the electrolyte used is

Solution

Correct option is

A molten mixture of Al2O3 and Na3AlF6

Al2O3 mixed with cryolite Na3[AlF6] is fused and electroysed in extraction of Al.

SIMILAR QUESTIONS

Q1

The formula of carnallite is:

Q2

The major role of fluorspar (CaF2) which is added in small quantities in the electrolytic reduction of alumina dissolved in fused cryolite (Na3AlF6) is:

Q3

 The molten metal, obtained after the element of copper pyrites in the blast furnace, has the composition of:

Q4

In metallurgy of iron, when lime stone is added to the blast furnace, the calcium ion ends up in

Q5

 In the alumino-thermite process, aluminium acts as

Q6

The major role of fluorspar (CaF2) which is added in small amount in the electrolytic reduction of alumina dissolved in fused cryolite (Na3AlF6) is

Q7

The chemical process in the production of steel from haematite ore involve

Q8

Which of the following process is used in extractive metallurgy of magnesium?

Q9

Which ore contains both iron and copper?

Q10

Native silver metal forms a water soluble complex with a dilute aqueous solution of NaCN in the presence of