AIIMS 2007
- Exam
- AIIMS
- Year
- 2007
- Subject
- Chemistry
- Chapter
- Chemical Bonding and Molecular Structure
AIIMS 2007 · Chemistry · Chemical Bonding and Molecular Structure
The order of bond length is
The order of bond length is
Options
- A(\mathrm{O}_2 < \mathrm{O}_3 < \mathrm{O}_2{ }^{2-})
- B(\mathrm{O}_2 < \mathrm{O}_2{ }^{2-} < \mathrm{O}_3)
- C(\mathrm{O}_2{ }^{2-} < \mathrm{O}_3 < \mathrm{O}_2)
- D(\mathrm{O}_2=\mathrm{O}_2{ }^{2-} > \mathrm{O}_3).
Correct answer
A. (\mathrm{O}_2 < \mathrm{O}_3 < \mathrm{O}_2{ }^{2-})
Step-by-step solution
Ozone molecule is V-shaped with (\mathrm{O}-\mathrm{O}) bond length .

The bond length is intermediate between that for a single bond (\left(1.48 Å\right.) as in (\left.\mathrm{H}_2 \mathrm{O}_2\right)) and for a double bond (1.21 as in (\mathrm{O}_2)).
The bond length is intermediate between that for a single bond (\left(1.48 Å\right.) as in (\left.\mathrm{H}_2 \mathrm{O}_2\right)) and for a double bond (1.21 as in (\mathrm{O}_2)).