Chemistry MCQ on Molecular Orbital Theory for NEET, JEE, Medical and Engineering Exam 2022

MCQ on Molecular Orbital Theory: Chemistry is considered to be the most scoring subject in NEET JEE Exam. As it is one of the easiest scoring subjects, it is often ignored and undermined a subject. But if you want to get an edge over others, here is a tip, master NEET/JEE Chemistry concepts. Chemistry demands the attention of students in understanding reactions and concrete basic understanding but once done it only gets easier from there. Mastering NCERT syllabus for NEET/JEE Chemistry should be topping your list of to-do for chemistry.

In this post we are providing you MCQ on Molecular Orbital Theory, which will be beneficial for you in upcoming NEET, JEE, Medical and Engineering Exams.

MCQ on Molecular Orbital Theory

Q1. Which of the following pairs has the same bond order?
a) O₂⁺, NO⁺
b) O₂^2-, B₂
c) N₂, O₂
d) NO, CO

Q2. When O₂ changes to O₂^–, the electron goes to which of the orbitals?
a) 𝜋 orbital
b) 𝜋^* orbital
c) 𝜎 orbital
d) 𝜎^* orbital

Q3.  Which of the following is not paramagnetic?
a) CO
b) NO
c) N₂⁺
d) O₂^–

Q4. Which among the following has the shortest C-C bond length?
a) Ethene
b) Ethane
c) Ethyne
d) Benzene

Q5. Find the molecule having the highest bond order.
a) O₂⁺
b) O₂^–
c) O₂^2-
d) O₂

Q6. Find the paramagnetic species.
a) CN^–
b) NO⁺
c) CO
d) O₂^–

Q7. O-O bond length is minimum in ________.
a) O₂^–
b) O₂⁺
c) O₂^2-
d) O₂

Q8. The oxygen molecule is paramagnetic. It can be explained by ________.
a) Resonance
b) Hybridisation
c) Valence bond theory
d) Molecular orbital theory

Q9. Each P of P₄O₁₀ is attached to how many oxygen atoms?
a) 2
b) 3
c) 4
d) 5

Q10. Find the diamagnetic species.
a) H₂
b) H₂^–
c) H₂⁺
d) He₂⁺

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