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H(2)O molecule is a triatomic molecule b...

`H_(2)O` molecule is a triatomic molecule but its geometry is not linear. Why ?

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The geometry of a covalent molecule does not depend upon the number of atoms present in it but upon the number of electron pairs around the central atom in the molecule. In `H_(2)O` molecule, there are in all four pairs of electrons (two shared pairs and two lone pairs ). According to VSEPR theory , the geometry is irregular. The actual shape of the molecule is angular.
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DINESH PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE -ADDITIONAL IMPORTANT QUASTIONS
  1. Which out of N(2) and H(2)O is polar and why ?

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  2. Calculate the electronegativity value of chlorine on Mulliken's scale,...

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  3. H(2)O molecule is a triatomic molecule but its geometry is not linear....

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  4. (a) Which of the following species has greater polarising power ? (i...

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  5. Why is lithium iodide more covalent than lithium fluoride ?

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  6. Out of CS(2) and OCS which have higher dipole moment and why?

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  7. Draw the Lewis structure of HCN.

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  8. The presence of polar bonds in a polyatomic molecule suggests that the...

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  9. Write two resonance structure of N2 O that satisfy the octet rule.

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  10. Out of but-1-yne or but-1-ene which has higher dipole moment?

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  11. Using VSEPR theory draw the shape of PCI(5) and BrF(5) ?.

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  12. How does the bond length vary in dicarbon species C(2),C(2)^(-),C(2)...

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  13. (a) How does bond energy vary from N(2)^(+) and N(2)^(-) and why ? ...

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  14. Why is mobilty of H^(+) ions in ice greater as compared to liquid wate...

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  15. According to Octed Rule, each atom gains or loses electrons to complet...

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  16. L.C.A.O. principle is involved in the formation of molecular orbitals ...

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  17. Arrange H(2)O,NH(3) and CH(4) molecules in decreasing order of bond an...

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  18. Explain sp^(2) hybridisation by taking example of ethylene.

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  19. In ionic solids, the oppositely charged ions are closely packed in spa...

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  20. The study of dipole moment of a molecule is useful to explain the shap...

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