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Consider the following:
I. The electron spin quantum number describes the orientation of the spin of the nucleus with respect to the magnetic field.
II. The orbitals represented by the quantum numbers $\mathrm{n}=3, l=2, \mathrm{~m}=+2$ and $\mathrm{n}=3, l=2, \mathrm{~m}=-2$ have the same energy
III. The energy of a photon is directly proportional to wavelength but inversely proportional to wave number
IV. Lyman series of lines appear in ultra-violet region
The correct statements are
Options:
I. The electron spin quantum number describes the orientation of the spin of the nucleus with respect to the magnetic field.
II. The orbitals represented by the quantum numbers $\mathrm{n}=3, l=2, \mathrm{~m}=+2$ and $\mathrm{n}=3, l=2, \mathrm{~m}=-2$ have the same energy
III. The energy of a photon is directly proportional to wavelength but inversely proportional to wave number
IV. Lyman series of lines appear in ultra-violet region
The correct statements are
Solution:
2431 Upvotes
Verified Answer
The correct answer is:
II \& IV only
Statement $\mathrm{I}$ is incorrect as the electron spin quantum number describes the orientation of the spin of the electron and not the nucleus.
Statement III is incorrect as the energy of a photon is directly proportional to the frequency but inversely proportional to the wave length.
Thus, II and IV only are correct.
Statement III is incorrect as the energy of a photon is directly proportional to the frequency but inversely proportional to the wave length.
Thus, II and IV only are correct.
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