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Explain the chemistry of borox bead test...

Explain the chemistry of borox bead test.

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PRADEEP-SOME p-BLOCK ELEMENTS-ADDITIONAL QUESTIONS (SHORT ANSWER QUESTIONS) I. Group 13 Elements
  1. How are boron trihalides prepared ?

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  2. Discuss the structure of boron trihalides.

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  3. Why do boron trihalides behave as Lewis acids ? Discuss their relati...

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  4. Describe the shapes of BF(3) and BH(4)^(ө). Assign the hybridisation o...

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  5. Explain the following giving reason : (i) BF(3) acts as a Lewis acid...

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  6. Arrange the boron trihalides in order of increasing Lewis acid chara...

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  7. Comment upon icosahedral structure of boron.

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  8. Why does boron differ from rest of the elements of group ? Give at l...

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  9. Discuss briefly the action of heat or borax.

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  10. Discuss the structure of [B(4)O(5)(OH)(4)]^(2-).

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  11. Explain the chemistry of borox bead test.

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  12. How is boric acid prepared from borax ? Briefly discuss its acidic...

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  13. Discuss the action of heat on boric acid .

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  14. How is borate ion detected in qualitative analysis ?

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  15. Comment upon the structure of boric acid .

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  16. How is diborane prepared in the laboratory ? Discuss its structure.

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  17. How is inorganic benzene prepared ? Why is it called so ?

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  18. Complete and balance the following chemical equations. (i) BF(3) + (...

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  19. Give the composition and uses of the following alloys. (i) Alumini...

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  20. List some uses of boron and its compounds.

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