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What are electron deficient compounds ? ...

What are electron deficient compounds ? Is `BCl_3` an electron deficient species ? Explain.

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The compound in which the central atom is having less than octet electrons are called electron deficient compounds.
`BCl_3` is an electron deficient compound since it is not having octet around boron.

`BCl_3` molecule accepts an electron pair to achieve stable electronic configuration and thus behave as Lewis acid .
Eg: `BCl_3` molecule easily accepts alone pair of electrons from ammonia to form `BCl_3`.
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VGS PUBLICATION-BRILLIANT-THE P-BLOCK ELEMENTS - GROUP 13 -SHORT ANSWER QUESTIONS
  1. Write reactions to justify amphoteric nature of aluminium .

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  2. What are electron deficient compounds ? Is BCl3 an electron deficient ...

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  3. Suggest reasons why the B-F bonds lengths in BF3 (130 pm) and BF4^- ...

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  4. B-Cl bond has a bond moment. Explain why BCl3 molecule has zero dipole...

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  5. Explain the structure of boric acid.

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  6. What happens when Borax is heated strongly ?

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  7. What happens when Boric acid is added to water ?

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  8. What happens when Aluminium is heated with dilute NaOH ?

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  9. What happens when BF3 is treated with ammonia ?

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  10. What happens when Hydrated alumina is treated with aq.NaOH solution ?

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  11. Give reasons Conc. HNO3 can be transported in aluminium container.

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  12. Give reasons A mixture of dil. NaOH and aluminium pieces in used to...

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  13. Give reasons Aluminium alloys are used to make aircraft body

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  14. Give reasons Aluminium utensils should not be kept in water overnigh...

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  15. Give reasons Aluminium wire is used to make transmission cables .

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  16. Explain why the electronegativity of Ga, In and Tl will not vary very ...

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  17. Explain borax bead test with a suitable example

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  18. Explain the structure of diborane.

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  19. Explain the reactions of aluminium with acids.

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  20. Write a short note on the anomalous behaviour of boron in the group - ...

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