Question:
The correct order of bond energy (in kJ/mol) of the following molecules is
The correct order of bond energy (in kJ/mol) of the following molecules is
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For bond energy questions, remember: stronger bond and higher bond order usually means higher bond energy. \(N_2\) has very high bond energy due to its triple bond.
Updated On: Apr 29, 2026
- \(O_2 < B_2 < C_2 < N_2\)
- \(B_2 < C_2 < O_2 < N_2\)
- \(C_2 < O_2 < B_2 < N_2\)
- \(B_2 < O_2 < C_2 < N_2\)
- \(B_2 < O_2 < N_2 < C_2\)
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The Correct Option is D
Solution and Explanation
Concept:
Bond energy depends mainly on bond order and bond strength. Higher bond order generally means higher bond energy.
Step 1: Recall the bond strength trend.
The approximate bond energy order among these molecules is: \[ B_2 < O_2 < C_2 < N_2 \]
Step 2: Understand why \(N_2\) is highest.
Nitrogen molecule has a very strong triple bond: \[ N \equiv N \] So, \(N_2\) has the highest bond energy.
Step 3: Choose the correct order.
Thus, the correct order is: \[ B_2 < O_2 < C_2 < N_2 \]
Step 1: Recall the bond strength trend.
The approximate bond energy order among these molecules is: \[ B_2 < O_2 < C_2 < N_2 \]
Step 2: Understand why \(N_2\) is highest.
Nitrogen molecule has a very strong triple bond: \[ N \equiv N \] So, \(N_2\) has the highest bond energy.
Step 3: Choose the correct order.
Thus, the correct order is: \[ B_2 < O_2 < C_2 < N_2 \]
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