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Molecular Orbital Theory Questions

Practice 19 Molecular Orbital Theory questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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19
Total Questions
๐ŸŸข
5
Easy
๐ŸŸก
13
Medium
๐Ÿ”ด
1
Hard
Practice by Exam:Chemistry(18)CHEMISTRY(1)

About Molecular Orbital Theory โ€” practice questions, PYQs & concepts

Molecular Orbital Theory is a frequently-tested topic on Chemistry, CHEMISTRY. ExamTest.live currently lists 19 Molecular Orbital Theory questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year โ€” every answer key is free, no sign-up required.

Molecular Orbital Theory weight in competitive exams

Across our Molecular Orbital Theory question bank, the largest sources are Chemistry (18) and CHEMISTRY (1). Click any exam chip above to drill down to that exam-specific question set.

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All Molecular Orbital Theory Questions(1โ€“19 of 19)

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Q1mediummcqChemistryAIEEE2026
0% accuracy
Which one of the following species is diamagnetic in nature?
Q2mediummcqChemistryAIEEE 20072026
0% accuracy
Which of the following species exhibits diamagnetic behaviour?
Q3mediummcqChemistryAIEEE 20072026
0% accuracy
In which of the following ionization processes, the bond order has increased and the magnetic behaviour has changed?
Q4easymcqChemistryNEET (UG) 20172026
0% accuracy
Which one of the following pairs of species have the same bond order?
Q5mediummcqChemistryJEE Main2026
Stability of the species , and increases in the order of:
Q6mediummcqChemistryAIEEE 20092026
Using MO theory predict which of the following species has the shortest bond length?
Q7mediummcqChemistryNEET 2020 E12026
Identify a molecule which does not exist.
Q8easymcqCHEMISTRYNEET 20192026
Which of the following is a paramagnetic compound?
Q9mediummcqChemistryNEET (UG) 20182026
Consider the following species: and . Which one of these will have the highest bond order?
Q10easymcqChemistryChemistry
6% accuracy
Given below are two statements: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:
Q11mediummcqChemistryChemistry
Decreasing order of stability of and is:
Q12mediummcqChemistryChemistry
The pair of species with the same bond order is:
Q13mediummcqChemistryChemistry
Bond order of 1.5 is shown by:
Q14mediummcqChemistryChemistry
Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them:
Q15easymcqChemistryChemistry
During change of to ion, the electron adds on which one of the following orbitals?
Q16easymcqChemistryChemistry
Which one of the following species does not exist under normal conditions?
Q17mediummcqChemistryChemistry
According to theory which of the following lists ranks the nitrogen species in terms of increasing bond order?
Q18mediummcqChemistryChemistry
Which of these presents the correct order of increasing bond order?
Q19hardmcqChemistryChemistry
Assertion : molecule is diamagnetic.Reason : The highest occupied molecular orbital is of type.

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We have 19 Molecular Orbital Theory questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
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Molecular Orbital Theory questions are commonly asked in Chemistry, CHEMISTRY. You can filter by exam using the links above.
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Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.