JEE Main 2023 · ChemistryNumerical answerNumerical valueEasyConceptual
JEE Main 8 April 2023, Shift 1, Chemistry Q82
Question 82 of 90 in this shift, Chemistry question 22 of 30, Section B.
The number of following statement/s which is/are incorrect is ________
(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
1
NTA final key.
- Chapter
- Structure of Atom
- Topic
- No close match in our taxonomy
- Idea tested
- No close match in our taxonomy