Chemistry · Chemical Bonding
NEET (UG) 2025 — Question 57
Given below are two statements: one is labelled as Statement I and the other is labelled as Statement II: Statement I: A hypothetical diatomic molecule with bond order zero is quite stable. Statement II: As bond order increases, the bond length increases. In the light of the above statements, choose the most appropriate answer from the options given below:
- Option A:
Both Statement I and Statement II are true
- Option B:Correct
Both Statement I and Statement II are false
- Option C:
Statement I is true but Statement II is false
- Option D:
Statement I is false but Statement II are true
Answer: B
Step-by-step solution
A diatomic molecule with bond order zero has no net bonding interaction and is unstable; thus Statement I is false. Bond order is inversely proportional to bond length: as bond order increases, bond length decreases. Therefore Statement II is also false. Both statements are false, so the correct option is B.
Answer key and solution verified before publishing.
Practise Chemical Bonding
Start with this question, then two more from the same chapter — with a tutor that explains every step. Free.
- Exam
- NEET (UG) 2025
- Paper
- 2025 paper
- Subject
- Chemistry
- Chapter
- Chemical Bonding
- Topic
- Molecular Orbital Theory