Calculate the bond order of O2

Content Curator

Bond order is a measure of the number of bonds between two atoms in a molecule. The bond order of O₂ (Oxygen molecule) can be calculated using the following steps:

Determine the number of electrons in the molecule: The electron configuration of Oxygen (O) is [He] 2s2 2p4. Hence, each oxygen atom has 8 electrons. So, O₂ has a total of 16 electrons.
Count the number of bonds between the two oxygen atoms: O₂ is a diatomic molecule and contains one double bond between the two oxygen atoms. Hence, the number of bonds is 1.
Divide the number of bonds by 2: The bond order of a molecule is equal to the number of bonds divided by 2.
The bond order of O₂ is 1/2 = 0.5.

So, the bond order of O2 is 0.5. This indicates that O2 is a paramagnetic molecule, which means it has unpaired electrons and has weak bonding between the two oxygen atoms.

Also check:

Related Topics
Polarity of Bonds	Hydrogen Bonding	Ionic or Electrovalent Bond
Hybridisation	Bond Enthalpy	Lewis Electron Dot Structure
Bond Energy	Sigma and Pi Bond	Chemical Bonding and Molecular Structure

CBSE CLASS XII Related Questions

1.
Consider the decomposition of hydrogen peroxide \( (\mathrm{H_2O_2}) \) as per the equation given below : \[ 2\mathrm{H_2O_2} \xrightarrow[\text{Alkaline medium}]{I^-} 2\mathrm{H_2O} + \mathrm{O_2} \] The mechanism for this reaction was found to be : Step I : \( \mathrm{H_2O_2} + I^- \longrightarrow \mathrm{H_2O} + IO^- \) (slow) Step II : \( \mathrm{H_2O_2} + IO^- \longrightarrow \mathrm{H_2O} + I^- + \mathrm{O_2} \) (fast) (a) Write the rate law expression. (b) Determine the order of reaction with respect to \( \mathrm{H_2O_2} \), \( I^- \) and overall order of reaction. (c) What is the molecularity of the reaction in Step II ?

View Solution

2.
Conductivity of \( 2.5 \times 10^{-4} \) M methanoic acid solution is \( 5.25 \times 10^{-5} \) S cm\(^{-1}\).
(a) Calculate its molar conductivity.
(b) Calculate its degree of dissociation.
[Given : \( \lambda^{\circ}_{(\mathrm{H^+})} = 349.5 \) S cm\(^2\) mol\(^{-1}\) and \( \lambda^{\circ}_{(\mathrm{HCOO^-})} = 50.5 \) S cm\(^2\) mol\(^{-1}\)]

View Solution

3.
A reaction \( \mathrm{A \rightarrow B} \) follows second order kinetics. How will the rate of reaction be affected if the concentration of (i) A is increased by three times, and (ii) A is reduced to half ?

View Solution

4.
Draw the structure of 'X' in the following reaction:

View Solution

5.
An organic compound (X) has the molecular formula \(C_5H_{10}O\). Draw structures for (X) if it:
(I) does not give Tollen's test but gives a positive iodoform test.
(II) does not give Tollen's test and iodoform test but undergoes Aldol condensation.
(III) undergoes Cannizzaro's reaction.

View Solution

6.
Explain the Finkelstein reaction.

View Solution

Calculate the bond order of O2

CBSE CLASS XII Related Questions

3.
A reaction \( \mathrm{A \rightarrow B} \) follows second order kinetics. How will the rate of reaction be affected if the concentration of (i) A is increased by three times, and (ii) A is reduced to half ?

4.
Draw the structure of 'X' in the following reaction:

5.
An organic compound (X) has the molecular formula \(C_5H_{10}O\). Draw structures for (X) if it:
(I) does not give Tollen's test but gives a positive iodoform test.
(II) does not give Tollen's test and iodoform test but undergoes Aldol condensation.
(III) undergoes Cannizzaro's reaction.

6.
Explain the Finkelstein reaction.

Comments

SUBSCRIBE TO OUR NEWS LETTER

Calculate the bond order of O2

CBSE CLASS XII Related Questions

3.A reaction \( \mathrm{A \rightarrow B} \) follows second order kinetics. How will the rate of reaction be affected if the concentration of (i) A is increased by three times, and (ii) A is reduced to half ?

4.Draw the structure of 'X' in the following reaction:

5.An organic compound (X) has the molecular formula \(C_5H_{10}O\). Draw structures for (X) if it: (I) does not give Tollen's test but gives a positive iodoform test. (II) does not give Tollen's test and iodoform test but undergoes Aldol condensation. (III) undergoes Cannizzaro's reaction.

6.Explain the Finkelstein reaction.

Comments

SUBSCRIBE TO OUR NEWS LETTER

3.
A reaction \( \mathrm{A \rightarrow B} \) follows second order kinetics. How will the rate of reaction be affected if the concentration of (i) A is increased by three times, and (ii) A is reduced to half ?

4.
Draw the structure of 'X' in the following reaction:

5.
An organic compound (X) has the molecular formula \(C_5H_{10}O\). Draw structures for (X) if it:
(I) does not give Tollen's test but gives a positive iodoform test.
(II) does not give Tollen's test and iodoform test but undergoes Aldol condensation.
(III) undergoes Cannizzaro's reaction.

6.
Explain the Finkelstein reaction.