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What are Lewis symbols?...

What are Lewis symbols?

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Lewis symbols are the dots used to represent the number of valence electrons in an atom. The number of valence electrons are represented by putting dots (.) or cross `(xx)` around the symbol of element.
for example, `overset(dot)(Li), underset(dot)overset(dot)(Be),cdot underset(dot)overset(dot)(B), cdot underset(dot)overset(dot)(C)cdot`
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OMEGA PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE -MULTIPLE CHOICE QUESTIONS
  1. What are Lewis symbols?

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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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