Home/
Competitive Exams/
JEE Main & Advanced/
Chemistry/
Chemical Bonding/
Question 600327
JEE Chemistry · Hard

Chemical Bonding: Molecular Orbital MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Molecular OrbitalHardQuestion 600327

Question

Which species is most stable (highest bond order) among NO, NO⁺, NO⁻?
  1. A
    NO
  2. B
    NO⁺
    Correct
  3. C
    NO⁻
  4. D
    All equal

Correct answer

NO⁺

Explanation

NO: bond order = 2.5. NO⁺ (loses antibonding e from π*): bond order = 3. NO⁻ (gains e in π*): bond order = 2. NO⁺ is isoelectronic with N₂ and most stable.

Review Chemical Bonding notesStart timed chapter practice