JEE MAIN - Chemistry (2021 - 18th March Evening Shift - No. 9)
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 :
Statement I is false but statement II is true.
Both statement I and statement II are true.
Statement I is true but statement II is false.
Both statement I and statement II are false.
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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