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Draw the structure of diborane....

Draw the structure of diborane.

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In the structure of diborane

In the structure of diborane,

Which is correct for the structure of diborane ?

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In diborane

Knowledge Check

  • In the structure of diborane,

    A
    All hydrogen atoms lie in one plane and boron atoms lie in a plane perpendicular to this plane
    B
    2 boron atoms and 4 terminal hydrogen atoms lie in the same plane and 2 bridging hydrogen atoms lie in the perpendicular plane.
    C
    4 bridging hydrogen atoms and boron atoms lie in one plane and two terminal hydrogen atoms lie in a plane perpendicular to this plane
    D
    All the atoms are in the same plane

  • Which is correct for the structure of diborane ?

    A
    It contains four `(2c, 2e)` covalent bonds and two `(3c, 2e)` covalent bonds.
    B
    It contains three `(2c, 2e)` covalent bonds and three `(3c, 2e)` covalent bonds.
    C
    It contains two `(2c, 2e)` covalent bonds and four `(3c, 2e)` covalent bond.
    D
    It contains six `(2c, 2e)` covalent bonds.

  • Which of the following statements is incorrect in relation to the structure of diborane

    A
    All the terminal B-H bond length are equal
    B
    The terminal B-H bond is a 2-centre 3-electron bond
    C
    The terminal B-H bond is a 2-centre 2-electron bond
    D
    • CBSE COMPLEMENTARY MATERIAL-P-BLOCK ELEMENTS-2-MARK QUESTION
    1. Draw the structure of diborane.

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    2. What happens when: Borax is heated strongly

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    3. What happens when: Boric acid is added to water,

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    4. Write balanced equations for: BF(3)+LiHto

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    5. Write balanced equations for:B(2)H(6)+NH(3)to

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    6. Write chemical reactions to show the amphoteric nature of water.

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    7. Suggest reasons why the B–F bond lengths in BF(3) (130 pm) and BF(4 )^...

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    8. Give reason for the following BF(3) act as weak Lewis acid.

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    9. Give reason for the following Boron cannot show covalency more than ...

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    10. How can you explain higher stability of BCI(3) as compared to TICI(3)?

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    11. Give reasons: Aluminium alloys are used to make aircraft body.

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    12. Give reasons: Aluminium wire is used to make transmission cables.

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

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    14. Explain the chemistry of borox bead test.

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    15. [SiF(6)]^(2-) is known where as [SiCl(6)]^(2-) not. Reason is

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    16. At room temperature, CO(2) is a gas while SiO(2) is a solid because

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    17. Why is solid carbon dioxide known as dry ice ?

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    18. Elemental silicon does not form a graphtie like structure. Explain.

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    19. Suggest a reason as to why CO is poisonous.

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    20. How is excessive content of CO(2) responsible for global warming?

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