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Explain the formation of a chemical bond...

Explain the formation of a chemical bond.

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Knowledge Check

  • During the formation of a chemical bond potential energy of the system

    A
    increases
    B
    decreases
    C
    neither increases nor decreases
    D
    remains constant.

  • Assertion :-The formation of a chemical bond involves a decrease in the potential energy of the system. Reason :- According to Lewis, the formation of a chemical bond involves the gain, loss or sharing of electrons.

    A
    If both Assertion and Reason are CORRECT and Reason is the CORRECT explanation of the Assertion
    B
    If both Assertion and Reason are CORRECT but Reason is not the CORRECT explanation of the Assertion.
    C
    If Assertion is CORRECT but Reason is INCORRECT.
    D
    If Assertion is INCORRECT but Reason is CORRECT.
    • ICSE-CHEMICAL BONDING AND MOLECULAR STRUCTURE-NCERT TEXT-BOOK EXERCISES ( WITH HINTS AND SOLUTIONS)
    1. Explain the formation of a chemical bond.

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    2. Write Lewis dot symbols for atoms of the following elements: Mg, Na,...

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    3. Write Lewis symbols for the following atoms and ions : S and S^(2-), A...

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    4. Draw the Lewis structures for the following molecules and ions :...

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    5. Define octet rule . Write its significance and limitations .

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    6. Write the favourable factors for the formation of ionic bond .

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    7. Discuss the shape of the following molecules using the VSEPR m...

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    8. Although geometries of NH3 and H2 O molecules are distorted tetrahedra...

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    9. How do you express the bond length in terms of bond order?

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    10. Define the bond length.

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    11. Explain the structure of CO(3)^(2-) ion in terms of resonance

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    12. H3 PO3 can be represented by structures 1 and 2 shown below. Can these...

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    13. Write the resonance structures for SO3 and NO(3)^(-)

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    14. Use Lewis symbols to show electron transfer between the following atom...

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    15. Use Lewis symbols to show electron transfer between the following atom...

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    16. Use Lewis symbols to show electron transfer between the following atom...

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    17. Although both CO2 and H2 O are triatomic molecules, the shape of H2 O ...

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    18. a) Discuss the significance/applications of dipole moment. b) Repres...

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    19. Define electronegativity. How does it differ from electron gain enthal...

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    20. Explain with the help of suitable example polar covalent bond.

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