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Represent the molecule H2O using Lewis n...

Represent the molecule `H_2O` using Lewis notation. 

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VGS PUBLICATION-BRILLIANT-CHEMICAL BONDING-EXERCISE
  1. What is ionisation? Give one example.

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  2. What is a coordination number?

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  3. Represent the molecule H2O using Lewis notation.

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  4. How can you explain the formation of H2O molecule using dot structure?

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  5. Distinguish between a sigma bond and a pi bond.

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  6. Write the difference between ionic bond and covalent bond.

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  7. Write a short note on octet rule with example.

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  8. Why a large amount of energy is needed to remove an electron from a ne...

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  9. Why there is absorption of energy in certain chemical reactions and re...

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  10. Electronic configuration of X is 2, 8, 1 and electronic configuration ...

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  11. Why do valency electrons involve in bond formation , than electrons of...

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  12. Why ionic compounds dissolve in polar solution and covalent compounds ...

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  13. Predict the reasons for low melting point for covalent compounds when ...

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  14. "Covalent compounds have low melting point". What is the reason for th...

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  15. If the electronic configurations of atoms A and B are 1s^2,2s^2, 2p^6,...

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  16. If the electronic configurations of atoms A and B are 3S^2,2S^2, 2P^6,...

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  17. If the electronic configurations of atoms A and B are 1S^2,2S^2, 2P^6,...

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  18. If the electronic configurations of atoms A and B are 1s^2,2s^2, 2p^6,...

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  19. (i) Write the electron-dot structures for sodium, oxygen and magnesium...

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  20. Show in the form of a picture, the formation of Na2O and MgO.

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