Solved: CHEMISTRY Question for NEET

NEET CHEMISTRYEasy

Match List-I with List-II:

List-I (Quantum Number) (A) $m_l$ (B) $m_s$ (C) $l$ (D) $n$

List-II (Information provided) (I) Shape of the orbital (II) Size of the orbital (III) Orientation of the orbital (IV) Orientation of spin of the electron

Choose the correct answer from the options given below:

A-III, B-IV, C-I, D-II

A-III, B-IV, C-II, D-I

A-II, B-I, C-IV, D-III

A-I, B-III, C-II, D-IV

Step-by-Step Solution

According to the NCERT text on Quantum Numbers:

Principal quantum number ( $n$ ): Determines the size and to a large extent the energy of the orbital . (Matches II)
Azimuthal quantum number ( $l$ ): Also known as orbital angular momentum, it defines the three-dimensional shape of the orbital . (Matches I)
Magnetic orbital quantum number ( $m_l$ ): Gives information about the spatial orientation of the orbital with respect to a standard set of coordinate axes . (Matches III)
Electron spin quantum number ( $m_s$ ): Refers to the orientation of the spin of the electron . (Matches IV)

Therefore, the correct matching is A-III, B-IV, C-I, D-II.

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