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Which of the following metal be extracte...

Which of the following metal be extracted by using 'A' as a reducing agent ?

A

W from `WO_(3)`

B

Mn from `Mn_(3)O_(4)`

C

Cr from `Cr_(2)O_(3)`

D

Na from `Na_(2)O`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
Aluminium doesnor reduce the sodiumoxide `(Na_(2)O)`
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AAKASH SERIES-ELEMENTS OF BORON FAMILY-PRACTICE SHEET (EXERCISE - II) LEVEL - II (ADVANCED)
  1. Alumiunium chloride exists as dimer, Al(2)Cl(6) in solid state as well...

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

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

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  4. Which of the following minerals does contains alluminium ?

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

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  6. Alums ae used for

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  7. Alum helps in purifying water by

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  8. Anhydrous AlCl(3) is obtained when

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

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

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

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

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

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

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

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

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  17. {:(,"Column - I",,"Column - II"),((A),B(2)H(6)+NH(3)overset(" under d...

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  18. The number of hybrid orbitals involved in the formation of B(2)H(6), B...

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  19. The number of moles of sulphate ions present in the general formula of...

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  20. The value of n in the molecular formula Ben Al(2)Si(6)O(18) is

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