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When a chemical bond is formed, the ener...

When a chemical bond is formed, the energy of the system:

A

Increases

B

decreases

C

does not change

D

sometimes increases and sometimes decreases

Text Solution

Verified by Experts

The correct Answer is:
B
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MBD PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE-QUESTION BANK
  1. Write notes on: Born-Haber Cycle.

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  2. Draw the molecular orbital energy level diagram for H2 and discuss its...

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  3. When a chemical bond is formed, the energy of the system:

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  4. The bond formed by sidewise overlapping of atomic orbitals is:

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  5. A CO2 molecule contains:

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  6. Which of the following molecule does not have dipole moment greater th...

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  7. The liner structure is not assumed by:

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  8. Which of the following species contains two lone pairs ant two bond pa...

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  9. The formation of adduct between NH3 and BF3 involves the formation of...

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  10. According to VSEPR theory. The most probable shape of the molecule hav...

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  11. The correct description of bonds in C2H2 Molecule is:

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  12. The shape of ClO3^- ion is:

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  13. The bond length between sp hybrid carbon and other carbon is minimum...

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  14. The number and type of bonds between two carbon atoms in calcium carbi...

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  15. The maximum number of hydrogen bonds in which water molecule can parti...

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  16. The correct order of C-O bond length among CO, CO3^(2-), CO2 is:

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  17. In which o the following bond angle around the central atom is maximum...

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  18. Which of the following has not a lone pair ?

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  19. What is the hybridization of nitrogen in NH3 ?

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  20. Among the following molecule which is an electron deficient compound ?

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