AIIMS 2007
- Exam
- AIIMS
- Year
- 2007
- Subject
- Chemistry
- Chapter
- Chemical Bonding and Molecular Structure
AIIMS 2007 · Chemistry · Chemical Bonding and Molecular Structure
Assertion : Molecular nitrogen is less reactive than molecular...
Assertion : Molecular nitrogen is less reactive than molecular oxygen.
Reason : The bond length of (\mathrm{N}_2) is shorter than that of oxygen.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion.
- BIf both assertion and reason are true but reason is not the correct explanation of assertion.
- CIf assertion is true but reason is false.
- DIf both assertion and reason are false.
Correct answer
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
Step-by-step solution
Bond order of (\mathrm{N}_2=3), bond order of (\mathrm{O}_2=2). Higher the bond order, higher is the bond dissociation energy i.e. higher stability or less reactivity. Thus (\mathrm{N}_2) is less reactive than (\mathrm{O}_2).
Higher the bond order, shorter is the bond length. Higher bond order of (\mathrm{N}_2) shows its shorter bond length.