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Boron always forms covalent compound. ...

Boron always forms covalent compound.
The small size of `B^(3+)` favours formation of covalent compound.

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DINESH PUBLICATION-P BLOCK ELEMENTS (GROUP 13 AND 14 )-Boron family
  1. What is inorganic benzene?

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  2. Name the elements of group 13 which form amphoteric hydroxides.

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  3. Boron always forms covalent compound. The small size of B^(3+) favou...

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

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  5. Arrange the following in increasing order of acidic strength and expla...

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  6. What is diagonal relationship ? Discuss the diagonal relationship betw...

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  7. What is diagonal relationship ? Discuss the diagonal relationship betw...

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  8. Explain why BF(3) is a weaker Lewis acid than BCl(3).

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  9. Name the group 13 element which forms most stable compounds in +1 oxid...

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  10. Anhydrous AlCl(3) is covalent but hydrated AlCl(3) is electrovalent. ...

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  11. Which elements constitute group 14 of periodic table? Write their elec...

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  12. Assertion (A) : Maximum covalency of carbon is four . Reason (R) : ...

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  13. At room temperature, CO(2) is a gas while SiO(2) is a solid because

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  14. Why is SnCl(2) more easly formed than SnCl(4)?

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  15. SiF(6)^(2-) exist but not CF(6)^(2-) explain why ?

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  16. Carbon and silicon are mainly tetravalent while germanium, tin and lea...

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  17. Trisilicylamine is a weaker base than trimethylamine. Explain.

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  18. Trisilicylamine is a weaker base than trimethylamine. Explain.

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

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  20. Why are silicones? How are they prepared? Give their important applica...

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