JEE Main 2021 — Structure Of Atom Question with Solution
From: JEE Main 2021 (Online) 18th March Evening Shift
Question
Given below are two statements :
Statement I : Bohr's theory accounts for the stability and line spectrum of Li+ ion.
Statement II : Bohr's theory was unable to explain the splitting of spectral lines in the presence of a magnetic field.
In the light of the above statements, choose the most appropriate answer from the options given below :
Statement I : Bohr's theory accounts for the stability and line spectrum of Li+ ion.
Statement II : Bohr's theory was unable to explain the splitting of spectral lines in the presence of a magnetic field.
In the light of the above statements, choose the most appropriate answer from the options given below :
Choose an option
Show full solutionCorrect option: A
Correct answer
AStatement I is false but statement II is true.
Step-by-step explanation
Bohr’s theory is applicable for unielectronic species only
Li+ has two electrons.
Bohr’s theory could not explain the splitting of spectral lines in the presence of external magnetic field (Zeeman effect)
Statement I – false
Statement II – true
Bohr’s theory could not explain the splitting of spectral lines in the presence of external magnetic field (Zeeman effect)
Statement I – false
Statement II – true
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This is a previous-year question from JEE Main 2021, covering the Structure Of Atom chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.