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Explain, why is boron trifluoride a stro...

Explain, why is boron trifluoride a strong Lewis acid.

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Why does boron trifluoride behave as a Lewis acid?

A non-metallic element of group 13, used in making bullet proof vests is extremely hard solid of black colour. It can exist in many allotropic forms and has unusually high melting point. Its trifluride acts as Lewis acid towards ammonia. The element exihibits maximum covalency of four. Identify the element and write the reaction of its trifluoride with ammonia Explain why does the trifluoride act as a Lewis acid ?

Why is boron trifluoride a weaker Lewis acid as compared to B Br_3 and BCl_3 ?

The best Lewis acid is

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Poorest Lewis acid is

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Electrophiles are Lewis acids.

ICSE-SOME P-BLOCK ELEMENTS -NCERT TEXTBOOK EXERCISES (With Hints and Solutions)
  1. Explain, why is boron trifluoride a strong Lewis acid.

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  2. Discuss the pattern of variation in the oxidation states of (i) B to T...

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  3. Explain, why is the +2 oxidation state of lead more stable than the +2...

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  4. How can you explain higher stability of BCl(3) as compared to TlCl(3) ...

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  5. Why does boron triflouride behave as a Lewis acid ?

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  6. Consider the compounds, BCl(3)" and "C"C"l(4). How will they behave wi...

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  7. Is boric acid a protic acid ? Explain.

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  8. Explain what happens when boric acid is heated .

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  9. Describe the shapes of BF(3)" and "BH(4)^(-). Assign the hybridisation...

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  10. Write reactions to justify amphoteric nature of aluminium.

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  11. What are electron deficient compounds ? Are BCl(3)" and "SiCl(4) elect...

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  12. Write the resonance structures of CO(3)^(2-)" and "HCO(3)^(-).

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

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

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

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

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  17. Rationalise the given statements and give chemical reactions : • Lead(...

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  18. Rationalise the given statements and give chemical reactions : • Lead(...

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  19. Rationalise the given statements and give chemical reactions : • Lead(...

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

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  21. If B–Cl bond has a dipole moment, explain why BCl(3) molecule has zer...

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