Discussion
Which of the following statement is NOT true with Bohr's model of atom?
Answer: D
The statement that is NOT true is that it only explains about the splitting of spectral lines in the presence of electric field.
Bohr's model cannot explain the splitting of spectral lines in an electric field (the Stark effect) or in a magnetic field (the Zeeman effect); this is one of its recognised failures. So the claim that it explains such splitting is false.
The other statements are true. The model works for one-electron species such as He+ and Li2+, explaining their stability and line spectra. It fails to account for the fine structure of the hydrogen spectrum seen with better spectrometers, cannot explain the spectrum of any atom or ion with two or more electrons, and cannot explain how atoms combine into molecules by chemical bonds.
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