The number of incorrect statements is :

A) Line emission spectra are used to study electronic structure.
B) Emission spectra of atoms in gas phase show a continuous spread of wavelength from red to v

Question

The number of incorrect statements is :

A) Line emission spectra are used to study electronic structure.
B) Emission spectra of atoms in gas phase show a continuous spread of wavelength from red to violet.
C) Absorption spectrum is like the photographic negative of emission spectrum.
D) Helium was discovered in the sun by spectroscopic method.

Canvas Classes · Accepted Answer

B) ✗ Incorrect — Gas phase atoms show discrete lines, not continuous spectra.

A, C, D are all correct.

Answer: 1

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