Verified Solution • 2025–26 Session moderate

QJEEM21Chddac: JEE Main 2021 Chemistry - Class 11 JEEM21Chddac Solution: Given below are two statements : Statement I : Bohr's theory…

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 :

Multiple Choice Options

  • A Statement I is false but statement II is true.
  • B Both statement I and statement II are true.
  • C Statement I is true but statement II is false.
  • D Both statement I and statement II are false.

Step-by-Step Verified Solution

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

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