In a H-like sample, electrons make transition from 4 th exc…

Chemistry Structure of Atom General Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

In a H-like sample, electrons make transition from 4 th excited state upto 2 nd state. Then :

10 different spectral lines are observed

6 different spectral lines are observed

number of lines belonging to the balmer series is 3

Number of lines belonging to paschen series is 2.

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(b,c,d)

Transition is taking place from 5 → 2

⇒ Δ n = 3

Hence maximum number of spectral line observed = = 6.

number of lines belonging to the Balmer series = 3 (5 → 2,4 → 2,3 → 2) as shown in figure.

Number of lines belonging to Paschen series = 2 (5 → 3, 4 → 3).

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