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The presence of polar bonds in a polyato...

The presence of polar bonds in a polyatomic molecule suggests that the molecule has non-zero dipole moment.

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The statement is not always true. In symmetrical `(BF_(3),C Cl_(4),CH_(4))` and linear `(CO_(2),BeF_(2))` molecules, the polarities of the bonds cancel out and these molecules have zero dipole moments. Only unsymmetricaland non-linear molecules have dipole moments.
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DINESH PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE -ADDITIONAL IMPORTANT QUASTIONS
  1. (a) Which of the following species has greater polarising power ? (i...

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

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

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  4. Draw the Lewis structure of HCN.

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

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

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

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

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

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

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

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

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

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

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

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

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

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  18. Draw the structure and state polar and non-polar nature of (a) Ch(4) (...

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  19. Drawn the molecular orbital diagram and write the bond order, magnetic...

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  20. How do you differentiatie between sigma and pi bonds ?

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