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The chief impurity present in bauxite is...

The chief impurity present in bauxite is

A

`SiO_(2)`

B

`Fe_(2)O_(3)`

C

`K_(2)SO_(4)`

D

`NaF`

Text Solution

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The correct Answer is:
B
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CENGAGE CHEMISTRY-P-BLOCK GROUP 13 - BORON FAMILY-Exercise (Single Correct)
  1. Boric acid is polymeric due to :

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  2. The chemical formula of feldspar is

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  3. The chief impurity present in bauxite is

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

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  5. Boric acid is used in carrom boards for smooth gliding of pawns becaus...

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  6. Aluminium chloride exists as a dimer, Al(2)Cl(6) in solid state as wel...

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  7. In which of the following molecules is hydrogen bridge bond present ?

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  8. Which of the following molecular hydride act as a Lewis acid ?

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  9. The stability of +1 oxidation state increases in the sequence :

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  10. Na(2)B(4)O(7).10H(2)O is correctly represented as

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  11. AlCl(3) is an electron-deficient compound but AlF(3) is not, due to

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  12. Bauxite ore is generally contaminated with impurity of oxides of two e...

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  13. Boron does not form B^(3+) ion, due to.

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  14. The number of isomers possible for disubstituted borazine, B(3)N(3)H(4...

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  15. Aqueus solution of borax acts as a buffer because

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  16. Correct match is :

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  17. When aluminium is heated in atomosphere of nitrogen it forms :

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  18. Which one of the following is more abundant in the earth's crust ?

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  19. Which of the following is acidic in nature ?

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  20. alums are used for :

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