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Consider the compounds, BCl(3) and C Cl(...

Consider the compounds, `BCl_(3)` and `C Cl_(4)`.How will they behave with water? Justify.

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To analyze how the compounds \( BCl_3 \) and \( CCl_4 \) behave with water, we need to consider their molecular structures and bonding characteristics. ### Step-by-Step Solution: 1. **Understanding the Structure of \( BCl_3 \)**: - Boron (B) has three valence electrons and forms three covalent bonds with chlorine (Cl). In \( BCl_3 \), boron has an incomplete octet, meaning it has a vacant p orbital. - This vacant orbital allows \( BCl_3 \) to act as a Lewis acid, which can accept a pair of electrons. ...
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All the boron trihalides except BI_(3) may be prepared by direction between the elements. Boron trihalides consist of trigonal-planar BX_(3) molecules. Unlike the halides of the other elements in the group they are monomeric in the gas, liquid and solid states, BF_(3) and BCl_(3) are gases, BBr_(3) is a volatile liquid and BI_(3) is a solid. Boron trihalides are Lewis acids because they form simple Lewis complexes with suitable bases, as in the reaction: BF_(3)(g)+NH_(3)(g)toF_(3)B-NH_(3)(s) However, boron chlorides, bromides and iodides are susceptible (sensitive) to protolysis by mild proton sources such as water, alcohols and even amines, for example BCl_(3) undergoes rapid hydrolysis: BCl_(3)(g)+3H_(2)O(l)toB(OH)_(3)(aq)+3HCl (aq) It is supposed that the first step in the above reaction is the formation of the complex Cl_(3)B larr OH_(2) which then eliminates HCl and reacts with water. Which of the follwoing is the best order of Lewis acid strength of BF_(3),BCl_(3) and BBr_(3) ?

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Assertion : Among SiCl_4 and C Cl_4 only SiCl_4 reacts with water. Reason : SiCl_4 is ionic and C Cl_4 is covalent .

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NCERT ENGLISH-THE P-BLOCK ELEMENTS -EXERCISE
  1. How can you explain higher stability of BCI(3) as compared to TICI(3)?

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

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

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  4. Is boric acid a protic acid? Explain.

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  5. Explain what happens when boric acid is heated.

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

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  7. Write reaction of justify amphoteric nature of aluminium.

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

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

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

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

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

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

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

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

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

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

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  18. Explain structures of diborane and boric acid.

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

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  20. Explain the following reactions (a) Silicon is heated with methyl ch...

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