Question:
Which of the following changes in the respective bond order values are caused by removal of an electron from N$_2$ and F$_2$ molecules?
Which of the following changes in the respective bond order values are caused by removal of an electron from N$_2$ and F$_2$ molecules?
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Removing antibonding electron increases bond order.
Updated On: May 8, 2026
- decrease by 0.5 in both
- increase by 0.5 in both
- increase by 0.5 in the former and decrease by 0.5 in the later
- decrease by 0.5 in the former and increase by 0.5 in the later
- no change in both
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The Correct Option is C
Solution and Explanation
Concept:
Bond order:
\[
BO = \frac{N_b - N_a}{2}
\]
Step 1: N$_2$ configuration. Bond order = 3 Removing electron from bonding orbital: \[ BO = 2.5 \Rightarrow \text{decrease} \]
Step 2: F$_2$ configuration. Bond order = 1 Removing electron from antibonding orbital: \[ BO = 1.5 \Rightarrow \text{increase} \]
Step 3: Conclusion. \[ \boxed{\text{Decrease in N$_2$, increase in F$_2$}} \]
Step 1: N$_2$ configuration. Bond order = 3 Removing electron from bonding orbital: \[ BO = 2.5 \Rightarrow \text{decrease} \]
Step 2: F$_2$ configuration. Bond order = 1 Removing electron from antibonding orbital: \[ BO = 1.5 \Rightarrow \text{increase} \]
Step 3: Conclusion. \[ \boxed{\text{Decrease in N$_2$, increase in F$_2$}} \]
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