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The +1 oxidation state in group 13 and +...

The +1 oxidation state in group 13 and +2 oxidation state in group 14 becomes more and more stable with increased atomic number. Explain.

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This is explanied on the basis of inert pair effect which becomes more effective as we downwards in the elements of both 13 and 14 groups. For more details, consult sectin 11.2 and section. 11.7
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DINESH PUBLICATION-P BLOCK ELEMENTS (GROUP 13 AND 14 )-Short answer type
  1. Give reasons for the following (a) C Cl(4) is immiscible in water, w...

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  2. Explain the following (a) CO(2) is a gas whereas SiO(2) is a solid ...

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  3. The +1 oxidation state in group 13 and +2 oxidation state in group 14 ...

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  4. Carbon and silicon both belong to the group 14, but inspite of the sto...

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  5. If a trivalent atom replaces a few silicon atoms in three dimensional ...

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  6. When BCl(3) is treated with water, it hydrolyses and forms [B(OH)(4)]^...

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  7. Aluminium dissovles in mineral acids and aqueous alkalies and thus sho...

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  8. Explain the following : (a) Boron has high melting and boiling point...

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  9. Identify the compound A, X and Z in the following reactions: (i) A+2...

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  10. Complete the following chemical equations: (i) z+3LiAlH(4)rarrX+3Li...

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  11. Describe the general trends in the following properties of the element...

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  12. Account for the following observation: (i) AlCl(3) is Lewis acid (...

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  13. When aqueous solution of borax is acidified with hydrochloric acid, a ...

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  14. Three pairs of compounds are given below, identify that compound in e...

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  15. BCl(3) exists as monomer whereas AlCl(3) is dimerised through halogen ...

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  16. Explain why BF(3) exist but BH(3) does not.

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  17. What are silicones ?

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  18. A compound (A) of boron reacts with Nme(3) to give an adduct (B) which...

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  19. A non-metallic element of group 13, used in making bullet prrof vests ...

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  20. A tetravalent element forms monoxide and dioxide with oxygen. When air...

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