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Bond Parameters - Bond Order, Angle, Length, and Energy MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 25, 2023 25:23 PM | #NEET
Quick Facts
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Bond Parameters: length, angle, energy, strength is considered one of the most asked concept.
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14 Questions around this concept.
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EASYWhich one of the following orders is correct for the bond dissociation enthalpy of halogen molecules
The correct order of increasing bond length of C-H, C-O, C-C and C=C is:
Concepts Covered - 1
Bond Parameters: length, angle, energy, strength
Bond length
It is the distance between the nuclei of two bonded atoms when the lowest potential energy between the atoms is achieved.
Bond angle
It is the angle between any two covalent bonds that share a common atom as shown in figure.
Bond distances (lengths) and angles are shown for the formaldehyde molecule, H2CO.
Bond energy
It is the energy required to break one mole of bonds between two atoms in a gaseous state. For example, the bond enthalpy of H-H bond is 435.8 kJ/mol.
Bond Strength
It is the strength by which the bonded atoms are held together in a molecule. It is measured in terms of the bond energy, in other words, it is the amount of energy required to break the bond.
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Average Bond Lengths and Bond Energies for Some Common Bonds |
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Bond |
Bond Length (Å) |
Bond Energy (kJ/mol) |
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C–C |
1.54 |
345 |
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C=C |
1.34 |
611 |
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C≡C |
1.20 |
837 |
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C–N |
1.43 |
290 |
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C=N |
1.38 |
615 |
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C≡N |
1.16 |
891 |
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C–O |
1.43 |
350 |
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C=O |
1.23 |
741 |
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C≡O |
1.13 |
1080 |
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