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Aluminium is extracted from Alumina (Al(...

Aluminium is extracted from Alumina (`Al_(2)O_3` ) by electrolysis of a molten mixture of

A

`Al_2O_3+Na_3AlF_6`

B

`Al_2O_3+KF+Na_3AlF_6`

C

`Al_2O_3+HF+NaAlF_4`

D

`Al_2O_3+CaF_2+NaAlF_4`

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The correct Answer is:
A
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Aluminium is extracted from alumina ( Al_2O_3 ) by electrolysis.

Aluminum is exteracted from alumine AI_(2)O_(3) by electrolysis of a molten mixture of :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Aluminium is extracted from bauxite by the electrolysis of molten mixture of Al_(2)O_(3) 3 with cryolite. Reason (R) : The oxidation state of Al in cryolite is + 3. In the light of the above statements, choose the most appropriate answer from the options given below:

Aluminium is obtained from Al_(2)O_(3) by _____reduction.

Extraction OF Aluminium (Al)

Aluminium is extracted in the electrolysis of :

Anhydrous alumina (Al_(2)O_(3)) is known as

Aluminium oxide, Al_(2)O_(3) is

Aluminium is produced commercially by the electrolysis of Al_(2)O_(3) . How many hours would be required to produce 250 g of Al usinga 5.00 ampere current?

AAKASH INSTITUTE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Assignment (Section-C) Previous Years Question
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  2. Match the following

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  3. Aluminium is extracted from Alumina (Al(2)O3 ) by electrolysis of a mo...

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  4. In the extraction of copper from its sulphide ore, the metal finally o...

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  5. Identify the alloy containing a non metal as a constituent in it

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  10. Match the following

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  11. Which of the following statements, about the advantage of roasting of ...

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  12. Sulphide ores of metals are usually concentrated by forth floation pro...

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  15. Which of the following does not contain aluminium?

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  16. Which of the following does not contain Mg?

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