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Why B-X bond distance in BX(3) is shorte...

Why `B-X` bond distance in `BX_(3)` is shorter than theoretically expected value ?

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Because of `p pi-p pi` bonding the B-X and in `BX_(3)` acquries a partial double bond character. As a result, the B-X bond length becomes lesser thatn the value expected for single covalent B-X bond.
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DINESH PUBLICATION-P BLOCK ELEMENTS (GROUP 13 AND 14 )-Concept based
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  2. Aluminium metal is frequently used as a reducing agent for the extract...

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  3. Why B-X bond distance in BX(3) is shorter than theoretically expected ...

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  4. Aluminium is a highly electropositive metal but it find extensive use ...

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

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  6. C Cl(4) does not act a Lewis acid while SiCl(4) behaves as a Lewis aci...

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  7. Why is C Cl(4) used in fire extinguishers while CS(2) cannot be used?

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  8. Stannous chloride and ferric chloride cannot be kept in the same cont...

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  9. How is lithium aluminium hydride prepared? What is its important use?

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  10. What are methanides? Whichg as do they liberate on hydrolysis?

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  11. Why is+2oxidiation state of lead more stable than +4 oxidation state?

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  12. Diagonal Relationship Between Beryllium And Aluminium

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  13. White fumes appear around the bottle of anhydrous aluminium chloride. ...

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  14. Boron is unable to form BF(6)^(3-)– ion. Explain.

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  15. Why is boric acid considered as a weak acid ?

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  16. In elements of group 14. (a) which forms the most acidic oxide (b)...

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  17. [SiF(6)]^(2-) is a well known compound but [SiCl(6)[^(2-) is not. Expl...

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  18. Diamond is covalent, yet it has high melting point. Why ?

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  19. What are alums? Give the chemcial formulae of the following alums:

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  20. Which importan t properties of aluminium are responsible for its great...

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