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Aluminium is obtained by...

Aluminium is obtained by

A

reducing `Al_(2)O_(3)` with coke

B

electrolysing `Al_(2)O_(3)` dissolved in `Na_(3)AlF_(6)`

C

reducing `Al_(2)O_(3)` with chromium

D

heating `Al_(2)O_(3)` and cryolite

Text Solution

Verified by Experts

The correct Answer is:
B
`Al_(2)O_(3)+Na_(3)AlF_(6)+CaF_(2)overset(" electrolyte ")rarr Al`
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AAKASH SERIES-ELEMENTS OF BORON FAMILY-PRACTICE SHEET (EXERCISE - II) LEVEL - II (ADVANCED)
  1. Al(2)O(3) formation involves large quantity of heat evolution which ma...

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  2. AlCl(3) exist as dimer because

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  3. Aluminium is obtained by

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  4. Aluminium vessels should not be washed with materials containing washi...

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  5. Alumiunium chloride exists as dimer, Al(2)Cl(6) in solid state as well...

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  6. Heating an aqueous solution of aluminium chloride to dryness will give...

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  7. Which of the following metal be extracted by using 'A' as a reducing a...

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  8. Which of the following minerals does contains alluminium ?

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  9. Al(2)O(3) can be converted to anhydrous AlCl(3) by heating :

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  10. Alums ae used for

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  11. Alum helps in purifying water by

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  12. Anhydrous AlCl(3) is obtained when

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  13. Identify the correct statements regarding the structure of Al(BH(4))(3...

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  14. Which of the following method can be used for preparation of anhydrous...

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  15. Which of the hydrolysis resction of halides of III - A group elements ...

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  16. Colemanite + Na(2)CO(3)overset(" Fused ")rarr (A)+(B)+CO(2) under...

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  17. Colemanite + Na(2)CO(3)overset(" Fused ")rarr (A)+(B)+CO(2) under...

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  18. Colemanite + Na(2)CO(3)overset(" Fused ")rarr (A)+(B)+CO(2) under...

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  19. Aluminium is stable in air and water inspite of the fact that it is re...

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  20. Aluminium is stable in air and water inspite of the fact that it is re...

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