Chemical Bonding

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Chemical Bonding - 01

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Q1. The attractive force which holds various constituents (atoms, ions etc.) together in different chemical species is called a *

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Chemical Bond

Ionic Bond

Covalent Bond

Chemical Compound

Q2. The evolution of various theories of valence and the interpretation of the nature of chemical bonds have closely been related to the developments in the understanding of *

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structure of atom

periodic table

electronic configuration of elements

All of the above

Q3. Who provide explanation of valence based on intertness of noble gases ? *

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Langmuir

Sidwick and Powel

Kossel-Lewis

Lewis

Q4. In the formation of a molecule which of the following take part in chemical combination? *

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Anion

Cation

Inner Shell electrons

Valence Electron

Q5. Which of the following do(es) not represent correct Lewis symbols? *

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II only

I, IV & V

II & III

II, III & IV

Q6. The bond formed as a result of the electrostatic attraction between the positive and negative ions is termed as *

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Coordinate Bond

Covalent Bond

Hydrogen bond

Ionic Bond

Q7. Cation and anion combines in a crystal to form following type of compound *

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Ionic

Network

Molecular

Covalent

Q8. Electrovalence of calcium and chlorine respectively is *

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+ 2, – 1

+ 1, – 1

+ 2, – 2

+ 1, – 2

Q9. When a metal atom combines with non-metal atom, the non-metal atom will *

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lose electrons and decrease in size

lose electrons and increase in size

gain electrons and increase in size

gain electrons and decrease in size

Q10. Who introduced the term covalent bond ? *

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Lewis

Nyhlom

Heitler and London

Langmuir

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