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Extraction of Aluminium

The chemical ...

Question

The chemical formula of Cryolite an important mineral of aluminium is:

A

Na₃AlF₆

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B

AlCl₃.H₂O

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C

Al₂O₃.2H₂O

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D

Al₂O₆

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Solution

The correct option is A
Na₃AlF₆

Cryolite is Na₃AlF₆.

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Similar questions

Q. Clay, cryolite, and bauxite are the minerals of aluminium.
Which among them is the ore of aluminum? What is its chemical formula?

Q. (a) Give the chemical name and formula of 'cryolite'.
(b) What is the function of cryolite in the extraction of aluminium, other than acting as a solvent for bauxite?

Q. The chemical formula of diaspore, an ore of aluminium, is:

Q. In the extraction of aluminium ;
(i) name the process of concentration of bauxite.
(ii) write the cathode reaction in electrolytic reduction of alumina.
(iii) write the function and chemical formula of cryolite.
(iv) write a chemical equation for the action of heat on aluminium hydroxide.
(v) why is it necessary to replace anodes time to time?

Q. Assertion :In the electrolytic reduction of

A l_{2} O_{3}

cryolite is used. Reason: Cryolite is an ore of aluminium.

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