Quantum Numbers & Electronic Configuration - Free MCQ Practice Test
MCQ Practice Test & Solutions: Test: Quantum Numbers & Electronic Configuration (20 Questions)
You can prepare effectively for NEET NCERT Based Tests for NEET with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Quantum Numbers & Electronic Configuration". These 20 questions have been designed by the experts with the latest curriculum of NEET 2026, to help you master the concept.
Test Highlights:
- - Format: Multiple Choice Questions (MCQ)
- - Duration: 20 minutes
- - Number of Questions: 20
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Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.
Q. Which is a possible set of quantum numbers for a valence unpaired electrons in ground state atom of phosphorus (Z = 15)?
Detailed Solution: Question 1
For a multi-electron atom, set of quantum numbers is given as
2,0,0,1/2 ; 2,0,0,-1/2
Q. Thus, the next higher allowed set of n and / quantum numbers for this atom in its ground state is
Detailed Solution: Question 2
Magnetic moments of the following isoelectronic species (24 electrons) are in order
Detailed Solution: Question 3
The orbital angular momentum for a d-orbital electron is given by
Detailed Solution: Question 4
The number of radial nodes in 3s and 2p respectively are
Detailed Solution: Question 5
A hydrogen like species in fourth orbit has radius 1.5 times that of Bohr's orbit. In neutral state, its valence electron is in
Detailed Solution: Question 6
Following suborbits with values of n and l are given
Q. Increasing order of energy of these suborbits is
Detailed Solution: Question 7
The correct set of four quantum numbers for the valence electron of rubidium atom (Z = 37) is
[JEE Main 2013]
Detailed Solution: Question 8
For Cr(24), (EC) : [Ar] 4s1 3d5 The number of electrons with l = 1 to l = 2 are respectively
Detailed Solution: Question 9
Last filling electron in lanthanides find place in 4f-orbital. Which of the following sets of quantum number is correct for an electron in 4f orbital?
Detailed Solution: Question 10
Direction (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THANT ONE is correct.
Q. Quantum numbers have been matched with their characteristics. Select correct matching(s).
Detailed Solution: Question 11
In the following pair, each has two orbitals I and II. Select the ones in which II experiences larger effective nuclear charge than l
Detailed Solution: Question 12
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?
Detailed Solution: Question 13
Which of the following statements is/are correct?
Detailed Solution: Question 14
The quantum number which specifies the location of an electron as well as energy is
Detailed Solution: Question 15
Quantum Numbers are solutions of _____________
Detailed Solution: Question 16
Which quantum numbers gives the shell to which the electron belongs?
Detailed Solution: Question 17
Direction (Q. Nos. 18) Choice the correct combination of elements and column I and coloumn II are given as option (a), (b), (c) and (d), out of which ONE option is correct.
Q. Match the entries in Column I with correctly related quantum number(s) in Column II
Detailed Solution: Question 18
), n, I and m are needed, if, it obeys Pauli's exclusion principle, then s is also needed.
Direction (Q. Nos. 19 and 20) This section contains 2 questions. when worked out will result in an integer from 0 to 9 (both inclusive)
Q. Bond order of 1.5 is shown by
Detailed Solution: Question 19
The maximum number of electrons that can have principal quantum number, n = 3 and spin quantum number,
Detailed Solution: Question 20
