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What are Lewis structures ? Wrtie the Le...

What are Lewis structures ? Wrtie the Lewis structures of `H_(2) , F_(2) , H_(2) O , NH_(3), C_(2) H_(4) and C_(2) H_(2)`

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PRADEEP-CHEMICAL BONDING AND MOLECULAR STRUCTURE-ADDITIONAL QUESTIONS (SHORT ANSWER QUESTIONS)
  1. What is meant by a covalent bond ? Explain with three suitable example...

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  2. Explain the term covalency .

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  3. What are Lewis structures ? Wrtie the Lewis structures of H(2) , F(2) ...

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  4. How is the formal charge on an atom in molecule/ion calculated ? Expl...

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  5. Illustrate the indadequacy of octet rule with two suitable examples. G...

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  6. predict the shapes of the following molecules using the valence shell ...

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  7. What happens when two hydrogen atoms approach each other ?

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  8. Briefly discuss the orbital concept of covalent bond formation taking...

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  9. What is valence bond approach of covalent bond ? Given two examples t...

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  10. Differentiate between sigma and pi bond .

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  11. Explain how the strength of a bond is related to (i) extent of overlap...

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  12. What are sigma and pi bonds ? Explain the different ways of their form...

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  13. Arrange the following according to bond length giving reasons : (i)...

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  14. Define the term Electronegativily. Explain it with one suitalbe exampl...

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  15. what do you understand by partial ionic character of covalent bonds ?

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  16. Define Dipole moment . Draw dipole diagrams of H(2)O and BF(3) .

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  17. Each carbon - oxygen bond in carbon dioxide molecule is polar but the ...

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  18. Explain the term dipole moment. Name two molecules which have dipole m...

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  19. Give reason for the following : (i) In solution, reactions of covalen...

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  20. What type of hybridisation is associated with the central when the ato...

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