Question

Select the electronic transition in H-atom for which
no spectral line is observed.
(1) 4p to 3d
(2) 2p to 1s
(3) 3d to 2p
(4) 3p to 3s​

Answer 1

Answer:

Select the electronic transition in H-atom for which

no spectral line is observed.

(1) 4p to 3d

(2) 2p to 1s

(3) 3d to 2p

(4) 3p to 3s ✔✔✔

Explanation:

spectral lines will only show when there is a moment of electron from one Orbit to another Orbit therefore in the last option orbit is not changing therefore electronic transition of hydrogen atom where the no spectral line is observed.