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Why boron forms electron deficient compo...

Why boron forms electron deficient compounds?

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CBSE COMPLEMENTARY MATERIAL-P-BLOCK ELEMENTS-1-MARK QUESTION
  1. Name the element of group 13 which forms only covalent compounds.

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  2. Why the atomic radius of gallium is less than that of Al?

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  3. Why boron forms electron deficient compounds?

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  4. Why boron does not exist as B^(3+) ion in solution or in compound ?

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  5. Why trihalides of group 13 elements fume in moist air?

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  6. Aluminium forms [AIF(6)]^(3-) ion but boron does not form [BF(6)]^(3-)...

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  7. Why boric acid is a monobasic acid ?

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  8. White fumes appear around the bottle of anhydrous aluminium chloride. ...

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  9. AlCl(3) exist as dimer while BCl(3) exist as monomer, why?

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  10. Hybridisation of Boron in B(2)H(6) molecule is :

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  11. Write the chemical formula of the following substances: Inorganic benz...

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  12. Why aluminum utensils should not be kept in water overnight.

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  13. Explain what happens when boric acid is heated.

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  14. BCl(3) exists but BH(3) does not. Explain.

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  15. WhySnCl(4) is more covalent than SnCl(2)

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  16. Why PbCl(4) is good oxidising agent?

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  17. What are germanes and plumbanes?

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  18. Give one example of zeolite.

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  19. Mention the type of hybridization of carbon in diamond an graphite.

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  20. Why "CCl"(4) is insoluble in water but SiCl(4) is soluble in water? Ex...

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