Given below are two statements.
Statement – I: Bohr’s theory accounts for the stability and line spectrum of $L i^{+}$ 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:

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Both statements I and II are true.

Statements I is false but statement II is true

Both statements I and II are false

Statement I is true but Statement II is false

answer is B.

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Detailed Solution

Statement I is false, because Bohr’s theory accounts for the stability and spectrum of single electronic species (e.g $H e^{+}, L i^{2 +}$ etc) but $L i^{+}$ has two electrons.
Bohr’s theory fails to explain splitting of spectral lines in presence of magnetic field i.e Zeeman effect.
$∴$ Statement II is true.