JEE Main 2021 — Structure of Atom Question with Solution
JEE Main 2021 (26 Aug Shift 1)
Question
Given below are two statements :
Statement I : According to Bohr's model of an atom, qualitatively the magnitude of velocity of electron increases with decrease in positive charges on the nucleus as there is no strong hold on the electron by the nucleus.
Statement II : According to Bohr's model of an atom, qualitatively the magnitude of velocity of electron increases with decrease in principle quantum number.
In the light of the above statements, choose the most appropriate answer from the options given below:
Choose an option
Show full solutionCorrect option: A
Step-by-step explanation
According to Bohr's model, velocity of electron is given by
As we see from the given formula velocity is inversely proportional to principle quantum number.
the magnitude of velocity of electron is independent of positive charges on the nucleus.
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This is a previous-year question from JEE Main 2021, covering the Structure of Atom chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.