JEE Mains · Chemistry · STD 11 - 2. structure of atom
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
- A \(2\)
- B \(1\)
- C \(3\)
- D \(0\)
Answer & Solution
Correct Answer
(B) \(1\)
Step-by-step Solution
Detailed explanation
(A) This statement is correct. Line emission spectra (or atomic emission spectra) are indeed used to study the electronic structure of atoms. These spectra are produced when photons are emitted from atoms as excited electrons return to a lower energy level. Each line corresponds…
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