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Quantum Numbers Questions

Practice 19 Quantum Numbers 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
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8
Easy
๐ŸŸก
10
Medium
๐Ÿ”ด
1
Hard
Practice by Exam:Chemistry(18)CHEMISTRY(1)

About Quantum Numbers โ€” practice questions, PYQs & concepts

Quantum Numbers is a frequently-tested topic on Chemistry, CHEMISTRY. ExamTest.live currently lists 19 Quantum Numbers 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.

Quantum Numbers weight in competitive exams

Across our Quantum Numbers 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.

How to use this page

  • Start easy: 8 easy Quantum Numbers questions are available โ€” build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right โ€” the explanation often surfaces a faster approach you can reuse.

All Quantum Numbers Questions(1โ€“19 of 19)

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Q1mediummcqChemistryAIEEE2026
0% accuracy
In a multi-electron atom, which of the following orbitals described by the three quantum numbers will have the same energy in the absence of magnetic and electric fields?(a) (b) (c) (d) (e)
Q2mediummcqChemistryAIEEE 20072026
0% accuracy
Which of the following sets of quantum numbers represents the highest energy of an atom?
Q3mediummcqChemistryAIEEE 20122026
The electrons identified by quantum numbers and :(a) (b) (c) (d) Can be placed in order of increasing energy as:
Q4easymcqChemistryAIEEE 20042026
Which of the following sets of quantum numbers is correct for an electron in a orbital?
Q5easymcqChemistryNEET (UG) 20242026
Match List I with List II regarding quantum numbers:
image
Q6mediummcqChemistryNEET 20232026
The relation between ( the number of permissible values of magnetic quantum number ()) for a given value of azimuthal quantum number (), is:
Q7hardmcqCHEMISTRYNEET 20192026
Orbital having 3 angular nodes and 3 total nodes is:
Q8easymcqChemistryNEET (UG) 20182026
Which one is a wrong statement?
Q9mediummcqChemistryChemistry
0% accuracy
The total number of atomic orbitals in fourth energy level of an atom is:
Q10mediummcqChemistryChemistry
Two electrons occupying the same orbital are distinguished by:
Q11easymcqChemistryChemistry
How many electrons can fit in the orbital for which and ?
Q12mediummcqChemistryChemistry
Consider the following sets of quantum numbers
image
Which of the following sets of quantum number is not possible?
Q13easymcqChemistryChemistry
What is the maximum number of orbitals that can be identified with the following quantum numbers ?
Q14mediummcqChemistryChemistry
What is the maximum number of electrons that can be associated with the following set of quantum numbers: ?
Q15mediummcqChemistryChemistry
The correct set of four quantum numbers for the valence electron of rubidium atom () is:
Q16mediummcqChemistryChemistry
Maximum number of electrons in a subshell with and is:
Q17easymcqChemistryChemistry
The orbital angular momentum of a -electron is given as:
Q18easymcqChemistryChemistry
Which of the following is not a permissible arrangement of electrons in an atom?
Q19easymcqChemistryChemistry
Maximum number of electrons in a subshell of an atom is determined by the following:

Frequently Asked Questions

How many Quantum Numbers questions are on ExamTest.live?โ–ผ
We have 19 Quantum Numbers questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Quantum Numbers MCQs free?โ–ผ
Yes. All Quantum Numbers questions, answers, and explanations on ExamTest.live are completely free. No account or subscription required.
Which exams include Quantum Numbers questions?โ–ผ
Quantum Numbers questions are commonly asked in Chemistry, CHEMISTRY. You can filter by exam using the links above.
How do I practice Quantum Numbers questions effectively?โ–ผ
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.