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Which of the following statements about ...

Which of the following statements about `H_(3)BO_(3)` is not correct ?

A

It is strong tribasic acid

B

It is prepared by acidifying an aqueous solution of borax

C

It has a layer structure in which planar `BO_(3)^(3-)` units are joined by hydrogen bonds

D

It does not act as proton donor but acts as a lewis acid by accepting hydroxyl ion

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The correct Answer is:
A
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ERRORLESS -S AND P BLOCK ELEMENTS-Ordinary thinking (Boron family)
  1. In the extraction of aluminium the electrolyte is

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  2. Which of the following statements about H(3)BO(3) is not correct ?

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  3. Aluminium (III) chloride froms a dimer because

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  4. Purification of aluminium done by electrolytic refining is known as

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  5. Which of the following is the electron-deficient molecule?

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  6. Which one of the following molecules hydrides acts as a Lewis acid ?

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

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

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  9. Which of the following statements is incorrect

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  10. The tendency of BF(3), BCl(3) and BBr(3) behave as Lewis acid decrease...

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  11. Which of the following structure is similar to graphite e?

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  12. The stability of +1 oxidation state among Al, Ga, In and Ti increases ...

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  13. Boric acid is an acid because its molecule

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  14. The purification of alumina is called

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  15. Bauxite containing impurities of iron oxide is purified by

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  16. Number of water molecules in Mohr's salt is

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  17. The liquified metal expanding on solidification is :

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  18. Which of the following is only acidic in nature?

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  19. In diborane, the two H-B-H angles are nearly

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  20. Borax is uded as a cleaning agent because on dissolving in water, it g...

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