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Define resonance....

Define resonance.

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Resonance is a phenomenon in which a single molecule can be represented by different structures. Each structure cannot explain all the properties of the molecule. Therefore the actual structure is in between these different contributing structures. This actual structure is known as resinance hybrid structure.
for example, Benzene molecule is a resonance hybrid of the following two main contributing structures.
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OMEGA PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE -MULTIPLE CHOICE QUESTIONS
  1. Define resonance.

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  2. A crystal has highest meltiing point. It is

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  3. Which one of the following has the shortest carbon carbon bond length?

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  4. The percentage of s- character in the hybrid orbitals sp, sp^(2)" and ...

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  5. In the co-ordinate valency

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  6. Which of the following has a net dipole moment?

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  7. Which of the following is diamagnetic?

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  8. In which one of the following sp^2 hybridisation?

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  9. The shape of sulphate ion is

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  10. The bond order for a species with the configuration, sigma1s^(2), sigm...

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  11. Which of the following is paramagnetic?

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

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  13. Which one shows maximum hydrogen bonding?

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  14. The weakest amoung the following types of bonds is

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  15. According to Fajan's rules covalent bonding is favourable by

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  16. The number of pi bonds in structure given are (NC)(2) C=C(CN)2

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  17. Which of the following compound is covalent?

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  18. Antibonding MO is formed by

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  19. In a hononuclear molecules, which of the following set of orbitals is...

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  20. Covalent compounds are soluble in

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  21. Which of the following has the largest de Broglie wavelength (all have...

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