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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 exmaple of each type.

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The shared pairs of electrons present between the covalently bonded atoms are called bond pairs. The electron pairs present on the atoms but not taking part in covalent bond formation are called lone pairs. Example :
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ICSE-CHEMICAL BONDING AND MOLECULAR STRUCTURE-NCERT TEXT-BOOK EXERCISES ( WITH HINTS AND SOLUTIONS)
  1. Is there any change in the hybridisation of B and N atoms as a result ...

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

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

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

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  5. Considering x-axis as the internuclear axis which out of the following...

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

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

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

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

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

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

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  12. Give two differences between a sigma bond and a pi bond.""^(**"**)

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  13. Discuss the formation of H2 molecule on the basis of Valence-bond theo...

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  14. Write the important conditions required for the linear combination of ...

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  15. Use molecular orbital theory to explain why the Be2 molecule does 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 plus and minus sign shown in representing th...

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  18. Describe the hybridisation in case of PCI5. Why are the axial bonds lo...

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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 N2, ...

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