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Explain why C—C bond length in ethane is...

Explain why C—C bond length in ethane is 154 pm while that in ethylene is 134 pm.

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ICSE-CHEMICAL BONDING AND MOLECULAR STRUCTURE-REVIEW EXERCISES
  1. Mention the geometrical shapes of the following molecules : BeF2

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  2. Mention the geometrical shapes of the following molecules : BF3

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  3. Explain why C—C bond length in ethane is 154 pm while that in ethylene...

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  4. Name the types of hybridisation which lead to the following geometries...

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  5. Name the types of hybridisation which lead to the following geometries...

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  6. Name the types of hybridisation which lead to the following geometries...

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  7. Name the types of hybridisation which lead to the following geometries...

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  8. How many hybrid orbitals will be formed if six orbitals of an atom tak...

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  9. What is the percentage of s- character in sp, sp^2 and sp^3 hybrid orb...

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  10. Explain hybridisation in SF6 molecule. What is the shape of this molec...

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  11. Write the state of hybridisation of carbon in CO(3)^(2-) ion.

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  12. Write the state of hybridisation of nitrogen in NO(3)^(-) ion.

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  13. Arrange the molecules H2, O2, F2 and N2 in the order of increasing bon...

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  14. Define bond dissociation energy.

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  15. State how the dissociation energy changes with the bond order?

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  16. Write the state of hybridisation of carbon in CO(3)^(2-) ion.

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  17. Write the state of hybridisation of nitrogen in NO(3)^(-) ion.

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  18. Write the state of hybridisation of H2 O

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  19. Write the state of hybridisation of boron in BF(4)^(-) ion

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  20. What type of hybridization is involved in PCI5 ?

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