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Why does a covalent bond develop a parti...

Why does a covalent bond develop a partial ionic character when the electronegativities of the combining atoms are different?

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Explore conceptually related problems

When does a covalent bond acquire partial ionic character?

When does an ionic bond develop a partial covalent character?

A bonding molecular orbital is formed when the electron waves of the combining atoms are in phase.

An ionic bond is formed when the electronegativity difference in the combining atoms is more than 2.

Fill in the blanks by chossing the appropriate word/words from those given in the brackets: (increases, ionic radius, CH_(2) , same, sigma, ionic, 14, 2, decreases, 16, CH_(3) , pi, covalent, ionic) An ______bond is formed when the electronegativity difference in teh combining atoms is more than ________

For the formation of covalent bond, the different in the value of electronegativities should be

Between ionic and covalent bonds, there are large majority of bonds, in which the bonding electrons are shared unequally between two atoms but are not completely transferred.Such bonds are said to be polar covalent bonds and the bond polarity is due to difference in electronegativity, the ability of an atom in a molecule to attract the shared electrons in a covalent bond. The measure of net polarity is a quantity called the dipole moment, mu , which is defined as the magnitude of the charge Q at either end of the molecular dipole times the distance r between the charges : mu=Qxxr .Molecular polarities give rise to some of the forces that occur between molecules and these forces are of several different types including dipole-dipole forces, London dispersion forces, and hydrogen bonds. All these intermolecular forces are electrical in origin and result from the mutual attraction of unlike charges or the mutual repulsion of like charges. Which of the following statements is incorrect ?

Between ionic and covalent bonds, there are large majority of bonds, in which the bonding electrons are shared unequally between two atoms but are not completely transferred.Such bonds are said to be polar covalent bonds and the bond polarity is due to difference in electronegativity, the ability of an atom in a molecule to attract the shared electrons in a covalent bond. The measure of net polarity is a quantity called the dipole moment, mu , which is defined as the magnitude of the charge Q at either end of the molecular dipole times the distance r between the charges : mu=Qxxr .Molecular polarities give rise to some of the forces that occur between molecules and these forces are of several different types including dipole-dipole forces, London dispersion forces, and hydrogen bonds. All these intermolecular forces are electrical in origin and result from the mutual attraction of unlike charges or the mutual repulsion of like charges. Which of the following statement is true ?

Why do alcohol (a covalent compound) dissolves in water (ionic)?

Why do alcohols ( covalent compounds) dissolve in water (ionic)?

ICSE-CHEMICAL BONDING AND MOLECULAR STRUCTURE-SHORT ANSWER TYPE QUESTIONS
  1. What do you understand by bond length? On what factors does it depend?

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  2. Carbon has four electrons in its valence shell. Which type of compound...

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  3. Why does a covalent bond develop a partial ionic character when the el...

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  4. You are given five neutral atoms A, B, C, D and E having the following...

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  5. You are given five neutral atoms A, B, C, D and E having the following...

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  6. You are given five neutral atoms A, B, C, D and E having the following...

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  7. You are given five neutral atoms A, B, C, D and E having the following...

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  8. Why is ionic bond regarded as an extreme case of a polar covalent bond...

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  9. Define bond energy. On what factors does it depend?

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  10. Discuss the formation of MgO.

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  11. Discuss the factors which govern the formation of an ionic bond.

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  12. What do you understand by variable electrovalency? Give atleast two ex...

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  13. What is inert pair effect? How does it account for the variable electr...

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  14. What is Born-Haber cycle? Explain with an example.

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  15. What are the factors which favour the formation of a covalent bond? Ex...

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  16. What do you understand by variable electrovalency? Give atleast two ex...

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  17. What are Sidgwick's views regarding the failure of the octet rule?

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  18. State and explain Fajan's rules.

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  19. Define dipole moment. How is it related to the molecular structure?

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  20. Write the resonating structures of O3 and CO2.

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