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How can you explain higher stability of ...

How can you explain higher stability of `BCI_(3)` as compared to `TICI_(3)`?

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Boron and thallium belong to group 13 of the periodic table. In this group, the +1 oxidation state becomes more stable on moving down the group. `BCl_(3)` is more stable tha `TlCl_(3)` because the +3 oxidation state of B is more stable than the +3 oxidation state of Tl. In Tl, the +3 state is highly oxidising and it reverts back to the more stable +1 state.
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NCERT-THE P-BLOCK ELEMENTS -EXERCISE
  1. Discuss the pattern of variation in the oxidation states of (a)B to TI...

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

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  3. Why does boron trifluoride behave as a Lewis acid?

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  4. Consider the compounds, BCl(3) and C Cl(4).How will they behave with w...

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  5. Is boric acid a protic acid? Explain.

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  6. Explain what happens when boric acid is heated.

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

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  8. Write reaction of justify amphoteric nature of aluminium.

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  9. What are electron-deficient compounds? Are BCl(3) and SiCl(4) electron...

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  10. Write the resonance structure of CO(3)^(2-) and HCO(3)^(ө).

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  11. What is the state of hybridisation of carbon in (a)CO(3)^(2-), (b) dia...

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  12. Explain the difference in properties of diamond and graphite on the ba...

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  13. Rationalise the given statements and give chemical reactions. a. Lea...

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

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  15. If B-Cl bond has a dipole moment, explain why BCl(3) molecule has zero...

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  16. AlF(3) is insoluble in anhydrous HF but dissolves on addition of NaF. ...

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

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

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  19. Explain structures of diborane and boric acid.

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  20. What happens when (a) Borax is heated strongly, (b) Boric acid is ...

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