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What do you understand by bond pairs and...

What do you understand by bond pairs and lone pairs of electrons? Illustrate by giving one example of each type.

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MODERN PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE-NCERT FILE (NCERT)(Textbook Exercises)
  1. The skeletal structure of CH(3)COOH as shown below is correct, but som...

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  2. Apart from tetrahedral geometry, another possible geometry for CH(4) i...

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  3. Explain why BeH(2) molecule has a zero dipole moment although the Be-H...

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  4. Which out of NH(3) and NF(3) has higher dipole moment and why?

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  5. What is meant by hybridisation of atomic orbitals? Describe the shape ...

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  6. Describe the change in hybridisation (if any) of the AI atom in the fo...

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  7. Is there any change in hybridisation of the B and N atom as a result o...

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  8. Draw diagrams showing the formation of a double bond and a triple bond...

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  9. What is the total number of sigma and pi bonds in the following molecu...

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  10. Considering x - axis as the internuclear axis which out of the followi...

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  11. Which hybrid orbitals are used by carbon atoms in the following molecu...

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  12. What do you understand by bond pairs and lone pairs of electrons? Illu...

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  13. Distinguish between a sigma and a pi bond.

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  14. Explain the formation of H(2) molecule on the basis of valance bond th...

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  15. Use molecular orbital theory to explain why the Be(2) molecules do not...

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  16. Compare the relative stability of the following species and indicate t...

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  17. Write the significance of a plus and a minus sign shown in representin...

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  18. Describe the hybridisation in case of PCl(2). Why are the axial bonds ...

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  19. Define hydrogen bond. Is it weaker or stronger than the van der Waals ...

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  20. What is meant by the term bond order? Calculate the bond order of : N(...

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