Chemistry · 2023
JEE Main · 8 April 2023, Shift 1 · Q82
The number of following statement/s which is/are incorrect is ____ (A) Line emission spectra are used to study the electronic structure (B) The…
The number of following statement/s which is/are incorrect is $\displaystyle \_\_\_\_$
(A)
Line emission spectra are used to study the electronic structure
(B)
The emission spectra of atoms in the gas phase show a continuous spread of wavelength from red to violet
(C)
An absorption spectrum is like the photographic negative of an emission spectrum
(D)
The element helium was discovered in the sun by spectroscopic method
Official answer
From NTA’s final answer key for this paper.
1
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JEE Main 2023 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.