MCQ
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:

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

Answer

Correct option: B.
Statement $I$ is false but statement $II$ is true.
b
Statement$-I$ is false since Bohr's theory accounts for the stability and spectrum of single electronic species $\left( eg : He ^{+}, Li ^{2+}\right.$ etc $)$

Statement$-II$ is true.

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