JEE Main 30 January 2024, Shift 2, Chemistry Q81

Question 81 of 90 in this shift, Chemistry question 21 of 30, Section B.

Number of spectral lines obtained in

\mathrm{He^+}

spectra, when an electron makes transition from fifth excited state to first excited state will be

Official answer

NTA final key.

Chapter: Structure of Atom
Topic: Bohr's Atomic Theory
Idea tested: Number of Spectral Lines in Transitions

Same idea in other shifts

Asked 2× in all

25 Jul 2022, Shift 2 · Q83When the excited electron of a H atom from n = 5 drops to the ground state, the maximum number of emission lines observed are ________.EasyNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.